├── module
├── META-INF
│ └── com
│ │ └── google
│ │ └── android
│ │ ├── updater-script
│ │ └── update-binary
├── module.prop
├── example.app_replace.list
├── example.pif.json
├── post-fs-data.sh
├── service.sh
├── common_func.sh
├── customize.sh
├── common_setup.sh
└── migrate.sh
├── .idea
├── .gitignore
├── compiler.xml
├── inspectionProfiles
│ ├── profiles_settings.xml
│ └── Project_Default.xml
├── vcs.xml
├── deploymentTargetDropDown.xml
├── migrations.xml
├── misc.xml
└── gradle.xml
├── app
├── src
│ └── main
│ │ ├── AndroidManifest.xml
│ │ ├── cpp
│ │ ├── CMakeLists.txt
│ │ ├── main.cpp
│ │ └── zygisk.hpp
│ │ └── java
│ │ └── es
│ │ └── chiteroman
│ │ └── playintegrityfix
│ │ ├── Keybox.java
│ │ ├── CustomProvider.java
│ │ ├── CertUtils.java
│ │ ├── XMLParser.java
│ │ ├── CustomKeyStoreSpi.java
│ │ ├── EntryPoint.java
│ │ └── CustomKeyStoreKeyPairGeneratorSpi.java
├── proguard-rules.pro
└── build.gradle.kts
├── .gitmodules
├── gradle
└── wrapper
│ ├── gradle-wrapper.jar
│ └── gradle-wrapper.properties
├── update.json
├── .gitignore
├── settings.gradle.kts
├── .github
├── FUNDING.yml
└── workflows
│ └── android.yml
├── CHANGELOG.md
├── gradle.properties
├── gradlew.bat
├── gradlew
├── README.md
└── LICENSE
/module/META-INF/com/google/android/updater-script:
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1 | #MAGISK
2 |
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/.idea/.gitignore:
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1 | # Default ignored files
2 | /shelf/
3 | /workspace.xml
4 |
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/app/src/main/AndroidManifest.xml:
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1 |
2 |
3 |
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/.gitmodules:
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1 | [submodule "Dobby"]
2 | path = app/src/main/cpp/Dobby
3 | url = https://github.com/jmpews/Dobby
4 |
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/gradle/wrapper/gradle-wrapper.jar:
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https://raw.githubusercontent.com/hex3l/PlayIntegrityForkKsBypass/HEAD/gradle/wrapper/gradle-wrapper.jar
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/.idea/compiler.xml:
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/.idea/inspectionProfiles/profiles_settings.xml:
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/.idea/vcs.xml:
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/update.json:
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1 | {
2 | "version": "v8",
3 | "versionCode": 80000,
4 | "zipUrl": "https://github.com/osm0sis/PlayIntegrityFork/releases/download/v8/PlayIntegrityFork-v8.zip",
5 | "changelog": "https://raw.githubusercontent.com/osm0sis/PlayIntegrityFork/main/CHANGELOG.md"
6 | }
7 |
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/.idea/deploymentTargetDropDown.xml:
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/gradle/wrapper/gradle-wrapper.properties:
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1 | distributionBase=GRADLE_USER_HOME
2 | distributionPath=wrapper/dists
3 | distributionUrl=https\://services.gradle.org/distributions/gradle-8.6-bin.zip
4 | networkTimeout=10000
5 | validateDistributionUrl=true
6 | zipStoreBase=GRADLE_USER_HOME
7 | zipStorePath=wrapper/dists
8 |
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/.idea/migrations.xml:
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/.gitignore:
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1 | *.iml
2 | .cxx
3 | .DS_Store
4 | .externalNativeBuild
5 | .gradle
6 | .idea/assetWizardSettings.xml
7 | .idea/caches
8 | .idea/libraries
9 | .idea/modules.xml
10 | .idea/navEditor.xml
11 | .idea/workspace.xml
12 | build/
13 | local.properties
14 | module/classes.dex
15 | module/pif.json
16 | module/zygisk/
17 | out/
18 |
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/app/proguard-rules.pro:
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1 | -keep class es.chiteroman.playintegrityfix.EntryPoint {public ;}
2 | -keep class es.chiteroman.playintegrityfix.CustomProvider
3 | -keep class es.chiteroman.playintegrityfix.CustomKeyStoreSpi
4 | -keep class es.chiteroman.playintegrityfix.CustomKeyStoreKeyPairGeneratorSpi$EC
5 | -keep class es.chiteroman.playintegrityfix.CustomKeyStoreKeyPairGeneratorSpi$RSA
6 |
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/module/module.prop:
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1 | id=playintegrityfix
2 | name=Play Integrity Fork
3 | version=v8
4 | versionCode=80001
5 | author=hex3l & osm0sis & chiteroman @ xda-developers
6 | description=Fix CTS profile (SafetyNet) and DEVICE verdict (Play Integrity), provides a bypass for AndroidKeyStore using a keybox.xml
7 | updateJson=https://raw.githubusercontent.com/osm0sis/PlayIntegrityFork/main/update.json
8 |
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/app/src/main/cpp/CMakeLists.txt:
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1 | cmake_minimum_required(VERSION 3.22.1)
2 |
3 | project(zygisk)
4 |
5 | find_package(cxx REQUIRED CONFIG)
6 |
7 | link_libraries(cxx::cxx)
8 |
9 | add_library(${CMAKE_PROJECT_NAME} SHARED ${CMAKE_SOURCE_DIR}/main.cpp)
10 |
11 | add_subdirectory(Dobby)
12 |
13 | SET_OPTION(Plugin.Android.BionicLinkerUtil ON)
14 |
15 | target_link_libraries(${CMAKE_PROJECT_NAME} PRIVATE log dobby_static)
16 |
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/settings.gradle.kts:
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1 | pluginManagement {
2 | repositories {
3 | google()
4 | mavenCentral()
5 | gradlePluginPortal()
6 | }
7 | }
8 | dependencyResolutionManagement {
9 | repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
10 | repositories {
11 | google()
12 | mavenCentral()
13 | }
14 | }
15 |
16 | rootProject.name = "PlayIntegrityFix"
17 | include(":app")
18 |
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/.idea/misc.xml:
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4 |
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6 |
7 |
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9 |
10 |
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/app/src/main/java/es/chiteroman/playintegrityfix/Keybox.java:
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1 | package es.chiteroman.playintegrityfix;
2 |
3 | import org.bouncycastle.asn1.x500.X500Name;
4 |
5 | import java.security.KeyPair;
6 | import java.security.PrivateKey;
7 | import java.security.cert.Certificate;
8 | import java.util.LinkedList;
9 |
10 | public record Keybox(KeyPair keypair, PrivateKey privateKey, LinkedList certificateChain,
11 | LinkedList certificateChainSubject) {
12 |
13 | }
14 |
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/.idea/inspectionProfiles/Project_Default.xml:
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1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
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/module/example.app_replace.list:
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1 | # Rename to custom.app_replace.list once customized
2 | #
3 | # Add conflicting custom ROM injection app folder/file paths to this list
4 | # and they will be replaced/hidden systemlessly to disable them
5 |
6 | # Xiaomi.eu
7 | /product/app/XiaomiEUInject
8 | /product/app/XiaomiEUInject-Stub
9 |
10 | # EliteRoms
11 | /system/app/EliteDevelopmentModule
12 | /system/app/XInjectModule
13 |
14 | # hentaiOS
15 | /system_ext/app/hentaiLewdbSVTDummy
16 |
17 | # Evolution X
18 | /system_ext/app/PifPrebuilt
19 |
20 | # PixelOS
21 | /system_ext/overlay/CertifiedPropsOverlay.apk
22 |
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/.idea/gradle.xml:
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1 |
2 |
3 |
4 |
5 |
18 |
19 |
20 |
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/module/META-INF/com/google/android/update-binary:
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1 | #!/sbin/sh
2 |
3 | #################
4 | # Initialization
5 | #################
6 |
7 | umask 022
8 |
9 | # echo before loading util_functions
10 | ui_print() { echo "$1"; }
11 |
12 | require_new_magisk() {
13 | ui_print "*******************************"
14 | ui_print " Please install Magisk v20.4+! "
15 | ui_print "*******************************"
16 | exit 1
17 | }
18 |
19 | #########################
20 | # Load util_functions.sh
21 | #########################
22 |
23 | OUTFD=$2
24 | ZIPFILE=$3
25 |
26 | mount /data 2>/dev/null
27 |
28 | [ -f /data/adb/magisk/util_functions.sh ] || require_new_magisk
29 | . /data/adb/magisk/util_functions.sh
30 | [ $MAGISK_VER_CODE -lt 20400 ] && require_new_magisk
31 |
32 | install_module
33 | exit 0
34 |
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/.github/FUNDING.yml:
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1 | # These are supported funding model platforms
2 |
3 | github: osm0sis # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
4 | patreon: # Replace with a single Patreon username
5 | open_collective: # Replace with a single Open Collective username
6 | ko_fi: # Replace with a single Ko-fi username
7 | tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
8 | community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
9 | liberapay: # Replace with a single Liberapay username
10 | issuehunt: # Replace with a single IssueHunt username
11 | otechie: # Replace with a single Otechie username
12 | custom: https://www.paypal.me/osm0sis # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
13 |
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/module/example.pif.json:
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1 | // Rename to custom.pif.json once completed
2 | //
3 | // See android.os.Build source for field value corresponding properties:
4 | // https://android.googlesource.com/platform/frameworks/base/+/master/core/java/android/os/Build.java
5 |
6 | {
7 | // Build Fields
8 | "MANUFACTURER": "",
9 | "MODEL": "",
10 | "FINGERPRINT": "",
11 | "BRAND": "",
12 | "PRODUCT": "",
13 | "DEVICE": "",
14 | "RELEASE": "",
15 | "ID": "",
16 | "INCREMENTAL": "",
17 | "TYPE": "",
18 | "TAGS": "",
19 | "SECURITY_PATCH": "",
20 | "DEVICE_INITIAL_SDK_INT": "",
21 |
22 | // System Properties
23 | "*.build.id": "", // for ro.build.id
24 | "*.security_patch": "", // for ro.build.version.security_patch
25 | "*api_level": "" // for ro.board.first_api_level, ro.product.first_api_level and ro.vendor.api_level
26 | }
27 |
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/.github/workflows/android.yml:
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1 | name: Android CI
2 |
3 | on:
4 | push:
5 | branches: main
6 | paths-ignore: '**.md'
7 | pull_request:
8 | branches: main
9 | paths-ignore: '**.md'
10 |
11 | jobs:
12 | build:
13 |
14 | runs-on: macos-14
15 |
16 | steps:
17 | - name: Check out
18 | uses: actions/checkout@v4
19 | with:
20 | submodules: 'recursive'
21 | fetch-depth: 0
22 |
23 | - name: Set up JDK
24 | uses: actions/setup-java@v4
25 | with:
26 | distribution: 'temurin'
27 | java-version: 17
28 |
29 | - name: Grant execute permission for gradlew
30 | run: chmod +x gradlew
31 |
32 | - name: Build with Gradle
33 | run: ./gradlew assembleRelease
34 |
35 | - name: Upload CI module zip as artifact zip
36 | uses: actions/upload-artifact@v4
37 | with:
38 | name: PlayIntegrityFork-CI_#${{ github.run_number }}
39 | path: 'module/*'
40 | compression-level: 9
41 |
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/CHANGELOG.md:
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1 | ## Custom Fork v8
2 | - Rename VERBOSE_LOGS to verboseLogs to better differentiate Advanced Settings from Build Fields or System Properties
3 | - Improve replace list to also allow file paths replacing/hiding systemlessly
4 | - Improve migration script and add optional verboseLogs entry to output
5 | - Improve replace list to automatically comment out any overlay APK config.xml entries systemlessly
6 | - Update default/example app replace list for more ROM spoof injection methods
7 | - Fix retaining disabled ROM apps through module updates in some scenarios
8 |
9 | ## Custom Fork v7
10 | - Fix non-/system ROM spoof injection app replacement
11 | - Add missing XiaomiEUInject-Stub to the default/example replace list
12 | - Improve code, scripts and logging
13 | - Fix ROM spoof injection app replacement when using KernelSU and APatch
14 | - Spoof init.svc.adbd to DroidGuard by default to further hide USB Debugging
15 | - Improve hiding from detection by user apps
16 |
17 | _[Previous changelogs](https://github.com/osm0sis/PlayIntegrityFork/releases)_
18 |
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/app/src/main/java/es/chiteroman/playintegrityfix/CustomProvider.java:
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1 | package es.chiteroman.playintegrityfix;
2 |
3 | import java.security.Provider;
4 |
5 | public final class CustomProvider extends Provider {
6 |
7 | CustomProvider(Provider provider) {
8 | super(provider.getName(), provider.getVersion(), provider.getInfo());
9 | EntryPoint.LOG("Loading new provider");
10 | putAll(provider);
11 | this.put("KeyStore.AndroidKeyStore", CustomKeyStoreSpi.class.getName());
12 | this.put("KeyPairGenerator.EC", CustomKeyStoreKeyPairGeneratorSpi.EC.class.getName());
13 | this.put("KeyPairGenerator.RSA", CustomKeyStoreKeyPairGeneratorSpi.RSA.class.getName());
14 | this.put("KeyPairGenerator.OLDEC", provider.get("KeyPairGenerator.EC"));
15 | this.put("KeyPairGenerator.OLDRSA", provider.get("KeyPairGenerator.RSA"));
16 | }
17 |
18 | @Override
19 | public synchronized Service getService(String type, String algorithm) {
20 | if (EntryPoint.getVerboseLogs() > 2) EntryPoint.LOG(String.format("Service: Caller type '%s' with algorithm '%s'", type, algorithm));
21 | if (type.equals("KeyStore")) EntryPoint.spoofDevice();
22 | return super.getService(type, algorithm);
23 | }
24 | }
25 |
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/module/post-fs-data.sh:
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1 | MODPATH="${0%/*}"
2 | . $MODPATH/common_func.sh
3 |
4 | if [ -d "$MODPATH/zygisk" ]; then
5 | # Remove Play Services from Magisk DenyList when set to Enforce in normal mode
6 | if magisk --denylist status; then
7 | magisk --denylist rm com.google.android.gms
8 | fi
9 | # Run common tasks for installation and boot-time
10 | . $MODPATH/common_setup.sh
11 | else
12 | # Add Play Services DroidGuard process to Magisk DenyList for better results in scripts-only mode
13 | magisk --denylist add com.google.android.gms com.google.android.gms.unstable
14 | fi
15 |
16 | # Conditional early sensitive properties
17 |
18 | # Samsung
19 | resetprop_if_diff ro.boot.warranty_bit 0
20 | resetprop_if_diff ro.vendor.boot.warranty_bit 0
21 | resetprop_if_diff ro.vendor.warranty_bit 0
22 | resetprop_if_diff ro.warranty_bit 0
23 |
24 | # Xiaomi
25 | resetprop_if_diff ro.secureboot.lockstate locked
26 |
27 | # Realme
28 | resetprop_if_diff ro.boot.realmebootstate green
29 |
30 | # OnePlus
31 | resetprop_if_diff ro.is_ever_orange 0
32 |
33 | # Microsoft
34 | resetprop_if_diff ro.build.tags release-keys
35 |
36 | # Other
37 | resetprop_if_diff ro.build.type user
38 | resetprop_if_diff ro.debuggable 0
39 | resetprop_if_diff ro.secure 1
40 |
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/gradle.properties:
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1 | # Project-wide Gradle settings.
2 | # IDE (e.g. Android Studio) users:
3 | # Gradle settings configured through the IDE *will override*
4 | # any settings specified in this file.
5 | # For more details on how to configure your build environment visit
6 | # http://www.gradle.org/docs/current/userguide/build_environment.html
7 | # Specifies the JVM arguments used for the daemon process.
8 | # The setting is particularly useful for tweaking memory settings.
9 | org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
10 | # When configured, Gradle will run in incubating parallel mode.
11 | # This option should only be used with decoupled projects. More details, visit
12 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
13 | # org.gradle.parallel=true
14 | # AndroidX package structure to make it clearer which packages are bundled with the
15 | # Android operating system, and which are packaged with your app's APK
16 | # https://developer.android.com/topic/libraries/support-library/androidx-rn
17 | android.useAndroidX=true
18 | # Enables namespacing of each library's R class so that its R class includes only the
19 | # resources declared in the library itself and none from the library's dependencies,
20 | # thereby reducing the size of the R class for that library
21 | android.nonTransitiveRClass=true
22 |
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/module/service.sh:
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1 | MODPATH="${0%/*}"
2 | . $MODPATH/common_func.sh
3 |
4 | # Conditional sensitive properties
5 |
6 | # Magisk recovery mode
7 | resetprop_if_match ro.bootmode recovery unknown
8 | resetprop_if_match ro.boot.mode recovery unknown
9 | resetprop_if_match vendor.boot.mode recovery unknown
10 |
11 | # SELinux
12 | resetprop_if_diff ro.boot.selinux enforcing
13 | # use delete since it can be 0 or 1 for enforcing depending on OEM
14 | if [ -n "$(resetprop ro.build.selinux)" ]; then
15 | resetprop --delete ro.build.selinux
16 | fi
17 | # use toybox to protect *stat* access time reading
18 | if [ "$(toybox cat /sys/fs/selinux/enforce)" = "0" ]; then
19 | chmod 640 /sys/fs/selinux/enforce
20 | chmod 440 /sys/fs/selinux/policy
21 | fi
22 |
23 | # Conditional late sensitive properties
24 |
25 | # SafetyNet/Play Integrity
26 | {
27 | # must be set after boot_completed for various OEMs
28 | until [ "$(getprop sys.boot_completed)" = "1" ]; do
29 | sleep 1
30 | done
31 |
32 | # avoid breaking Realme fingerprint scanners
33 | resetprop_if_diff ro.boot.flash.locked 1
34 | resetprop_if_diff ro.boot.realme.lockstate 1
35 |
36 | # avoid breaking Oppo fingerprint scanners
37 | resetprop_if_diff ro.boot.vbmeta.device_state locked
38 |
39 | # avoid breaking OnePlus display modes/fingerprint scanners
40 | resetprop_if_diff vendor.boot.verifiedbootstate green
41 |
42 | # avoid breaking OnePlus/Oppo fingerprint scanners on OOS/ColorOS 12+
43 | resetprop_if_diff ro.boot.verifiedbootstate green
44 | resetprop_if_diff ro.boot.veritymode enforcing
45 | resetprop_if_diff vendor.boot.vbmeta.device_state locked
46 | }&
47 |
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/module/common_func.sh:
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1 | # resetprop_hexpatch [-f|--force]
2 | resetprop_hexpatch() {
3 | case "$1" in
4 | -f|--force) local FORCE=1; shift;;
5 | esac
6 |
7 | local NAME="$1"
8 | local NEWVALUE="$2"
9 | local CURVALUE="$(resetprop "$NAME")"
10 |
11 | [ ! "$NEWVALUE" -o ! "$CURVALUE" ] && return 1
12 | [ "$NEWVALUE" = "$CURVALUE" -a ! "$FORCE" ] && return 2
13 |
14 | local NEWLEN=${#NEWVALUE}
15 | if [ -f /dev/__properties__ ]; then
16 | local PROPFILE=/dev/__properties__
17 | else
18 | local PROPFILE="/dev/__properties__/$(resetprop -Z "$NAME")"
19 | fi
20 | [ ! -f "$PROPFILE" ] && return 3
21 | local NAMEOFFSET=$(echo $(strings -t d "$PROPFILE" | grep "$NAME") | cut -d ' ' -f 1)
22 |
23 | #
24 | local NEWHEX="$(printf '%02x' "$NEWLEN")$(printf "$NEWVALUE" | od -A n -t x1 -v | tr -d ' \n')$(printf "%$((92-NEWLEN))s" | sed 's/ /00/g')"
25 |
26 | printf "Patch '$NAME' to '$NEWVALUE' in '$PROPFILE' @ 0x%08x -> \n[0000??$NEWHEX]\n" $((NAMEOFFSET-96))
27 |
28 | echo -ne "\x00\x00" \
29 | | dd obs=1 count=2 seek=$((NAMEOFFSET-96)) conv=notrunc of="$PROPFILE"
30 | echo -ne "$(printf "$NEWHEX" | sed -e 's/.\{2\}/&\\x/g' -e 's/^/\\x/' -e 's/\\x$//')" \
31 | | dd obs=1 count=93 seek=$((NAMEOFFSET-93)) conv=notrunc of="$PROPFILE"
32 | }
33 |
34 | # resetprop_if_diff
35 | resetprop_if_diff() {
36 | local NAME="$1"
37 | local EXPECTED="$2"
38 | local CURRENT="$(resetprop "$NAME")"
39 |
40 | [ -z "$CURRENT" ] || [ "$CURRENT" = "$EXPECTED" ] || resetprop_hexpatch "$NAME" "$EXPECTED"
41 | }
42 |
43 | # resetprop_if_match
44 | resetprop_if_match() {
45 | local NAME="$1"
46 | local CONTAINS="$2"
47 | local VALUE="$3"
48 |
49 | [[ "$(resetprop "$NAME")" = *"$CONTAINS"* ]] && resetprop_hexpatch "$NAME" "$VALUE"
50 | }
51 |
52 | # stub for boot-time
53 | ui_print() { return; }
54 |
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/module/customize.sh:
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1 | # Allow a scripts-only mode on older Android without Zygisk
2 | if [ "$API" -lt 26 -o -f /data/adb/modules/playintegrityfix/scripts-only-mode ]; then
3 | ui_print "! Installing global scripts only for Android < 8.0; Zygisk attestation fallback and device spoofing disabled"
4 | touch $MODPATH/scripts-only-mode
5 | rm -rf $MODPATH/classes.dex $MODPATH/common_setup.sh $MODPATH/custom.pif.json \
6 | $MODPATH/example.app_replace.list $MODPATH/example.pif.json $MODPATH/migrate.sh $MODPATH/zygisk \
7 | /data/adb/modules/playintegrityfix/custom.app_replace.list \
8 | /data/adb/modules/playintegrityfix/custom.pif.json /data/adb/modules/playintegrityfix/system
9 | fi
10 |
11 | # Copy any disabled app files to updated module
12 | if [ -d /data/adb/modules/playintegrityfix/system ]; then
13 | ui_print "- Restoring disabled ROM apps configuration"
14 | cp -arf /data/adb/modules/playintegrityfix/system $MODPATH
15 | fi
16 |
17 | # Copy any supported custom files to updated module
18 | for FILE in custom.app_replace.list custom.pif.json keybox.xml; do
19 | if [ -f "/data/adb/modules/playintegrityfix/$FILE" ]; then
20 | ui_print "- Restoring $FILE"
21 | cp -af /data/adb/modules/playintegrityfix/$FILE $MODPATH/$FILE
22 | fi
23 | done
24 |
25 | # Warn if potentially conflicting modules are installed
26 | if [ -d /data/adb/modules/MagiskHidePropsConf ]; then
27 | ui_print "! MagiskHidePropsConfig (MHPC) module may cause issues with PIF"
28 | fi
29 |
30 | # Run common tasks for installation and boot-time
31 | [ -d "$MODPATH/zygisk" ] && . $MODPATH/common_setup.sh
32 |
33 | # Migrate custom.pif.json to latest defaults if needed
34 | if [ -f "$MODPATH/custom.pif.json" ] && ! grep -q "api_level" $MODPATH/custom.pif.json; then
35 | ui_print "- Running migration script on custom.pif.json:"
36 | ui_print " "
37 | chmod 755 $MODPATH/migrate.sh
38 | sh $MODPATH/migrate.sh install $MODPATH/custom.pif.json
39 | ui_print " "
40 | fi
41 |
42 | # Clean up any leftover files from previous deprecated methods
43 | rm -f /data/data/com.google.android.gms/cache/pif.prop /data/data/com.google.android.gms/pif.prop \
44 | /data/data/com.google.android.gms/cache/pif.json /data/data/com.google.android.gms/pif.json
45 |
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/app/src/main/java/es/chiteroman/playintegrityfix/CertUtils.java:
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1 | package es.chiteroman.playintegrityfix;
2 |
3 | import org.bouncycastle.asn1.x500.X500Name;
4 | import org.bouncycastle.cert.X509CertificateHolder;
5 | import org.bouncycastle.cert.jcajce.JcaX509CertificateConverter;
6 | import org.bouncycastle.openssl.PEMKeyPair;
7 | import org.bouncycastle.openssl.PEMParser;
8 | import org.bouncycastle.openssl.jcajce.JcaPEMKeyConverter;
9 | import org.bouncycastle.util.io.pem.PemObject;
10 | import org.bouncycastle.util.io.pem.PemReader;
11 |
12 | import java.io.IOException;
13 | import java.io.StringReader;
14 | import java.security.KeyPair;
15 | import java.security.PrivateKey;
16 | import java.security.cert.Certificate;
17 |
18 | public class CertUtils {
19 |
20 | public static Certificate parseCert(String cert) throws Throwable {
21 | PemObject pemObject;
22 | try (PemReader reader = new PemReader(new StringReader(cert))) {
23 | pemObject = reader.readPemObject();
24 | }
25 |
26 | X509CertificateHolder holder = new X509CertificateHolder(pemObject.getContent());
27 |
28 | return (new JcaX509CertificateConverter().getCertificate(holder));
29 | }
30 |
31 | public static X500Name parseCertSubject(String cert) throws Throwable {
32 | PemObject pemObject;
33 | try (PemReader reader = new PemReader(new StringReader(cert))) {
34 | pemObject = reader.readPemObject();
35 | }
36 |
37 | X509CertificateHolder holder = new X509CertificateHolder(pemObject.getContent());
38 |
39 | return holder.getSubject();
40 | }
41 |
42 | public static KeyPair parseKeyPair(String key) throws Throwable {
43 | Object object;
44 | try (PEMParser parser = new PEMParser(new StringReader(key))) {
45 | object = parser.readObject();
46 | }
47 |
48 | PEMKeyPair pemKeyPair = (PEMKeyPair) object;
49 |
50 | return new JcaPEMKeyConverter().getKeyPair(pemKeyPair);
51 | }
52 |
53 | public static PrivateKey parsePrivateKey(String keyPair) throws RuntimeException {
54 | try (PEMParser parser = new PEMParser(new StringReader(keyPair))) {
55 | PEMKeyPair pemKeyPair = (PEMKeyPair) parser.readObject();
56 | return new JcaPEMKeyConverter().getPrivateKey(pemKeyPair.getPrivateKeyInfo());
57 | } catch (IOException e) {
58 | throw new RuntimeException(e);
59 | }
60 | }
61 | }
62 |
--------------------------------------------------------------------------------
/module/common_setup.sh:
--------------------------------------------------------------------------------
1 | # Remove any definitely conflicting modules that are installed
2 | if [ -d /data/adb/modules/safetynet-fix ]; then
3 | touch /data/adb/modules/safetynet-fix/remove
4 | ui_print "! Universal SafetyNet Fix (USNF) module will be removed on next reboot"
5 | fi
6 |
7 | # Replace/hide conflicting custom ROM injection app folders/files to disable them
8 | LIST=$MODPATH/example.app_replace.list
9 | [ -f "$MODPATH/custom.app_replace.list" ] && LIST=$MODPATH/custom.app_replace.list
10 | for APP in $(grep -v '^#' $LIST); do
11 | if [ -e "$APP" ]; then
12 | case $APP in
13 | /system/*) ;;
14 | *) PREFIX=/system;;
15 | esac
16 | HIDEPATH=$MODPATH$PREFIX$APP
17 | if [ -d "$APP" ]; then
18 | mkdir -p $HIDEPATH
19 | if [ "$KSU" = "true" -o "$APATCH" = "true" ]; then
20 | setfattr -n trusted.overlay.opaque -v y $HIDEPATH
21 | else
22 | touch $HIDEPATH/.replace
23 | fi
24 | else
25 | mkdir -p $(dirname $HIDEPATH)
26 | if [ "$KSU" = "true" -o "$APATCH" = "true" ]; then
27 | mknod $HIDEPATH c 0 0
28 | else
29 | touch $HIDEPATH
30 | fi
31 | fi
32 | case $APP in
33 | */overlay/*)
34 | CFG=$(echo $APP | grep -oE '.*/overlay')/config/config.xml
35 | if [ -f "$CFG" ]; then
36 | if [ -d "$APP" ]; then
37 | APK=$(readlink -f $APP/*.apk);
38 | elif [[ "$APP" = *".apk" ]]; then
39 | APK=$(readlink -f $APP);
40 | fi
41 | if [ -s "$APK" ]; then
42 | PKGNAME=$(unzip -p $APK AndroidManifest.xml | tr -d '\0' | grep -oE '[[:alnum:].-_]+\*http' | cut -d\* -f1)
43 | if [ "$PKGNAME" ] && grep -q "overlay package=\"$PKGNAME" $CFG; then
44 | HIDECFG=$MODPATH$PREFIX$CFG
45 | if [ ! -f "$HIDECFG" ]; then
46 | mkdir -p $(dirname $HIDECFG)
47 | cp -af $CFG $HIDECFG
48 | fi
49 | sed -i 's;;;' $HIDECFG
50 | fi
51 | fi
52 | fi
53 | ;;
54 | esac
55 | if [[ -d "$APP" || "$APP" = *".apk" ]]; then
56 | ui_print "! $(basename $APP .apk) ROM app disabled, please uninstall any user app versions/updates after next reboot"
57 | [ "$HIDECFG" ] && ui_print "! + $PKGNAME entry commented out in copied overlay config"
58 | fi
59 | fi
60 | done
61 |
--------------------------------------------------------------------------------
/app/build.gradle.kts:
--------------------------------------------------------------------------------
1 | plugins {
2 | id("com.android.application")
3 | }
4 |
5 | android {
6 | namespace = "es.chiteroman.playintegrityfix"
7 | compileSdk = 34
8 | ndkVersion = "26.2.11394342"
9 | buildToolsVersion = "34.0.0"
10 |
11 | buildFeatures {
12 | prefab = true
13 | }
14 |
15 | packaging {
16 | jniLibs {
17 | excludes += "**/liblog.so"
18 | excludes += "**/libdobby.so"
19 | }
20 | }
21 |
22 | defaultConfig {
23 | applicationId = "es.chiteroman.playintegrityfix"
24 | minSdk = 26
25 | targetSdk = 34
26 | versionCode = 1
27 | versionName = "1.0"
28 |
29 | externalNativeBuild {
30 | cmake {
31 | arguments += "-DANDROID_STL=none"
32 | arguments += "-DCMAKE_BUILD_TYPE=Release"
33 |
34 | cppFlags += "-std=c++20"
35 | cppFlags += "-fno-exceptions"
36 | cppFlags += "-fno-rtti"
37 | cppFlags += "-fvisibility=hidden"
38 | cppFlags += "-fvisibility-inlines-hidden"
39 | }
40 | }
41 | }
42 |
43 | buildTypes {
44 | release {
45 | isMinifyEnabled = true
46 | isShrinkResources = true
47 | proguardFiles(getDefaultProguardFile("proguard-android-optimize.txt"), "proguard-rules.pro")
48 | }
49 | }
50 |
51 | compileOptions {
52 | sourceCompatibility = JavaVersion.VERSION_17
53 | targetCompatibility = JavaVersion.VERSION_17
54 | }
55 |
56 | externalNativeBuild {
57 | cmake {
58 | path = file("src/main/cpp/CMakeLists.txt")
59 | version = "3.22.1"
60 | }
61 | }
62 | }
63 |
64 | dependencies {
65 | implementation("dev.rikka.ndk.thirdparty:cxx:1.2.0")
66 | implementation("org.bouncycastle:bcpkix-jdk18on:1.77")
67 | }
68 |
69 | tasks.register("copyFiles") {
70 | doLast {
71 | val moduleFolder = project.rootDir.resolve("module")
72 | val dexFile = project.layout.buildDirectory.get().asFile.resolve("intermediates/dex/release/minifyReleaseWithR8/classes.dex")
73 | val soDir = project.layout.buildDirectory.get().asFile.resolve("intermediates/stripped_native_libs/release/stripReleaseDebugSymbols/out/lib")
74 |
75 | dexFile.copyTo(moduleFolder.resolve("classes.dex"), overwrite = true)
76 |
77 | soDir.walk().filter { it.isFile && it.extension == "so" }.forEach { soFile ->
78 | val abiFolder = soFile.parentFile.name
79 | val destination = moduleFolder.resolve("zygisk/$abiFolder.so")
80 | soFile.copyTo(destination, overwrite = true)
81 | }
82 | }
83 | }
84 |
85 | tasks.register("zip") {
86 | dependsOn("copyFiles")
87 |
88 | archiveFileName.set("PlayIntegrityFork.zip")
89 | destinationDirectory.set(project.rootDir.resolve("out"))
90 |
91 | from(project.rootDir.resolve("module"))
92 | }
93 |
94 | afterEvaluate {
95 | tasks["assembleRelease"].finalizedBy("copyFiles", "zip")
96 | }
97 |
--------------------------------------------------------------------------------
/gradlew.bat:
--------------------------------------------------------------------------------
1 | @rem
2 | @rem Copyright 2015 the original author or authors.
3 | @rem
4 | @rem Licensed under the Apache License, Version 2.0 (the "License");
5 | @rem you may not use this file except in compliance with the License.
6 | @rem You may obtain a copy of the License at
7 | @rem
8 | @rem https://www.apache.org/licenses/LICENSE-2.0
9 | @rem
10 | @rem Unless required by applicable law or agreed to in writing, software
11 | @rem distributed under the License is distributed on an "AS IS" BASIS,
12 | @rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | @rem See the License for the specific language governing permissions and
14 | @rem limitations under the License.
15 | @rem
16 |
17 | @if "%DEBUG%"=="" @echo off
18 | @rem ##########################################################################
19 | @rem
20 | @rem Gradle startup script for Windows
21 | @rem
22 | @rem ##########################################################################
23 |
24 | @rem Set local scope for the variables with windows NT shell
25 | if "%OS%"=="Windows_NT" setlocal
26 |
27 | set DIRNAME=%~dp0
28 | if "%DIRNAME%"=="" set DIRNAME=.
29 | @rem This is normally unused
30 | set APP_BASE_NAME=%~n0
31 | set APP_HOME=%DIRNAME%
32 |
33 | @rem Resolve any "." and ".." in APP_HOME to make it shorter.
34 | for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
35 |
36 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
37 | set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
38 |
39 | @rem Find java.exe
40 | if defined JAVA_HOME goto findJavaFromJavaHome
41 |
42 | set JAVA_EXE=java.exe
43 | %JAVA_EXE% -version >NUL 2>&1
44 | if %ERRORLEVEL% equ 0 goto execute
45 |
46 | echo. 1>&2
47 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
48 | echo. 1>&2
49 | echo Please set the JAVA_HOME variable in your environment to match the 1>&2
50 | echo location of your Java installation. 1>&2
51 |
52 | goto fail
53 |
54 | :findJavaFromJavaHome
55 | set JAVA_HOME=%JAVA_HOME:"=%
56 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe
57 |
58 | if exist "%JAVA_EXE%" goto execute
59 |
60 | echo. 1>&2
61 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
62 | echo. 1>&2
63 | echo Please set the JAVA_HOME variable in your environment to match the 1>&2
64 | echo location of your Java installation. 1>&2
65 |
66 | goto fail
67 |
68 | :execute
69 | @rem Setup the command line
70 |
71 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
72 |
73 |
74 | @rem Execute Gradle
75 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
76 |
77 | :end
78 | @rem End local scope for the variables with windows NT shell
79 | if %ERRORLEVEL% equ 0 goto mainEnd
80 |
81 | :fail
82 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
83 | rem the _cmd.exe /c_ return code!
84 | set EXIT_CODE=%ERRORLEVEL%
85 | if %EXIT_CODE% equ 0 set EXIT_CODE=1
86 | if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
87 | exit /b %EXIT_CODE%
88 |
89 | :mainEnd
90 | if "%OS%"=="Windows_NT" endlocal
91 |
92 | :omega
93 |
--------------------------------------------------------------------------------
/module/migrate.sh:
--------------------------------------------------------------------------------
1 | #!/bin/sh
2 |
3 | case "$1" in
4 | -h|--help|help) echo "sh migrate.sh [-f] [-a] [in-file] [out-file]"; exit 0;;
5 | esac;
6 |
7 | N="
8 | ";
9 |
10 | case "$1" in
11 | -i|--install|install) INSTALL=1; shift;;
12 | *) echo "custom.pif.json migration script \
13 | $N by osm0sis @ xda-developers $N";;
14 | esac;
15 |
16 | item() { echo "- $@"; }
17 | die() { [ "$INSTALL" ] || echo "$N$N! $@"; exit 1; }
18 | grep_get_json() { cat "$FILE" | tr -d '\r\n' | grep -m1 -owE "$1"'"[^,}]+"' | cut -d\" -f3; }
19 | grep_check_json() { grep -q "$1" "$FILE" && [ "$(grep_get_json $1)" ]; }
20 |
21 | case "$1" in
22 | -f|--force|force) FORCE=1; shift;;
23 | esac;
24 | case "$1" in
25 | -a|--advanced|advanced) ADVANCED=1; shift;;
26 | esac;
27 |
28 | if [ -f "$1" ]; then
29 | FILE="$1";
30 | DIR="$1";
31 | else
32 | case "$0" in
33 | *.sh) DIR="$0";;
34 | *) DIR="$(lsof -p $$ 2>/dev/null | grep -o '/.*migrate.sh$')";;
35 | esac;
36 | fi;
37 | DIR=$(dirname "$(readlink -f "$DIR")");
38 | [ -z "$FILE" ] && FILE="$DIR/custom.pif.json";
39 |
40 | OUT="$2";
41 | [ -z "$OUT" ] && OUT="$DIR/custom.pif.json";
42 |
43 | [ -f "$FILE" ] || die "No json file found";
44 |
45 | grep_check_json api_level && [ ! "$FORCE" ] && die "No migration required";
46 |
47 | [ "$INSTALL" ] || item "Parsing fields ...";
48 |
49 | FPFIELDS="BRAND PRODUCT DEVICE RELEASE ID INCREMENTAL TYPE TAGS";
50 | ALLFIELDS="MANUFACTURER MODEL FINGERPRINT $FPFIELDS SECURITY_PATCH DEVICE_INITIAL_SDK_INT";
51 |
52 | for FIELD in $ALLFIELDS; do
53 | eval $FIELD=\"$(grep_get_json $FIELD)\";
54 | done;
55 |
56 | if [ -n "$ID" ] && ! grep_check_json build.id; then
57 | item 'Simple entry ID found, changing to ID field and "*.build.id" property ...';
58 | fi;
59 |
60 | if [ -z "$ID" ] && grep_check_json BUILD_ID; then
61 | item 'Deprecated entry BUILD_ID found, changing to ID field and "*.build.id" property ...';
62 | ID="$(grep_get_json BUILD_ID)";
63 | fi;
64 |
65 | if [ -n "$SECURITY_PATCH" ] && ! grep_check_json security_patch; then
66 | item 'Simple entry SECURITY_PATCH found, changing to SECURITY_PATCH field and "*.security_patch" property ...';
67 | fi;
68 |
69 | if grep_check_json VNDK_VERSION; then
70 | item 'Deprecated entry VNDK_VERSION found, changing to "*.vndk.version" property ...';
71 | VNDK_VERSION="$(grep_get_json VNDK_VERSION)";
72 | fi;
73 |
74 | if [ -n "$DEVICE_INITIAL_SDK_INT" ] && ! grep_check_json api_level; then
75 | item 'Simple entry DEVICE_INITIAL_SDK_INT found, changing to DEVICE_INITIAL_SDK_INT field and "*api_level" property ...';
76 | fi;
77 |
78 | if [ -z "$DEVICE_INITIAL_SDK_INT" ] && grep_check_json FIRST_API_LEVEL; then
79 | item 'Deprecated entry FIRST_API_LEVEL found, changing to DEVICE_INITIAL_SDK_INT field and "*api_level" property ...';
80 | DEVICE_INITIAL_SDK_INT="$(grep_get_json FIRST_API_LEVEL)";
81 | fi;
82 |
83 | if [ -z "$RELEASE" -o -z "$INCREMENTAL" -o -z "$TYPE" -o -z "$TAGS" ]; then
84 | item "Missing default fields found, deriving from FINGERPRINT ...";
85 | IFS='/:' read F1 F2 F3 F4 F5 F6 F7 F8 < "$OUT";
126 |
127 | [ "$INSTALL" ] || cat "$OUT";
128 |
--------------------------------------------------------------------------------
/app/src/main/java/es/chiteroman/playintegrityfix/XMLParser.java:
--------------------------------------------------------------------------------
1 | /**
2 | * PlayIntegrityForkKsBypass bypass AndroidKeyStore with specified keybox
3 | * Copyright (C) 2024 hex3l
4 | *
5 | * This program is free software: you can redistribute it and/or modify
6 | * it under the terms of the GNU General Public License as published by
7 | * the Free Software Foundation, either version 3 of the License, or
8 | * any later version.
9 | *
10 | * This program is distributed in the hope that it will be useful,
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 | * GNU General Public License for more details.
14 | *
15 | * You should have received a copy of the GNU General Public License
16 | * along with this program. If not, see .
17 | */
18 |
19 | package es.chiteroman.playintegrityfix;
20 |
21 | import org.xmlpull.v1.XmlPullParser;
22 | import org.xmlpull.v1.XmlPullParserException;
23 | import org.xmlpull.v1.XmlPullParserFactory;
24 |
25 | import java.io.IOException;
26 | import java.io.StringReader;
27 | import java.util.HashMap;
28 | import java.util.Map;
29 |
30 | public class XMLParser {
31 |
32 | private final String xml;
33 |
34 | public XMLParser(String xml) {
35 | this.xml = xml;
36 | }
37 |
38 | public Map obtainPath(String path) throws Exception {
39 | XmlPullParserFactory xmlFactoryObject = XmlPullParserFactory.newInstance();
40 | XmlPullParser parser = xmlFactoryObject.newPullParser();
41 | parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, false);
42 | parser.setInput(new StringReader(xml));
43 |
44 | String[] tags = path.split("\\.");
45 |
46 | return readData(parser, tags, 0, new HashMap<>());
47 | }
48 |
49 | private Map readData(XmlPullParser parser, String[] tags, int index, Map tagCounts) throws IOException, XmlPullParserException {
50 | while (parser.next() != XmlPullParser.END_DOCUMENT) {
51 | if (parser.getEventType() != XmlPullParser.START_TAG) {
52 | continue;
53 | }
54 |
55 | String name = parser.getName();
56 |
57 | if (name.equals(tags[index].split("\\[")[0])) {
58 |
59 | String[] tagParts = tags[index].split("\\[");
60 | if (tagParts.length > 1) {
61 | if (tagCounts.getOrDefault(name, 0) < Integer.parseInt(tagParts[1].replace("]", ""))) {
62 | tagCounts.put(name, tagCounts.getOrDefault(name, 0) + 1);
63 | return readData(parser, tags, index, tagCounts);
64 | } else {
65 | if (index == tags.length - 1) {
66 | return readAttributes(parser);
67 | } else {
68 | return readData(parser, tags, index + 1, tagCounts);
69 | }
70 | }
71 | } else {
72 | if (index == tags.length - 1) {
73 | return readAttributes(parser);
74 | } else {
75 | return readData(parser, tags, index + 1, tagCounts);
76 | }
77 | }
78 | } else {
79 | skip(parser);
80 | }
81 | }
82 |
83 | throw new XmlPullParserException("Path not found");
84 | }
85 |
86 | private Map readAttributes(XmlPullParser parser) throws IOException, XmlPullParserException {
87 | Map attributes = new HashMap<>();
88 | for (int i = 0; i < parser.getAttributeCount(); i++) {
89 | attributes.put(parser.getAttributeName(i), parser.getAttributeValue(i));
90 | }
91 | if (parser.next() == XmlPullParser.TEXT) {
92 | attributes.put("text", parser.getText());
93 | }
94 | return attributes;
95 | }
96 |
97 | private void skip(XmlPullParser parser) throws XmlPullParserException, IOException {
98 | if (parser.getEventType() != XmlPullParser.START_TAG) {
99 | throw new IllegalStateException();
100 | }
101 | int depth = 1;
102 | while (depth != 0) {
103 | switch (parser.next()) {
104 | case XmlPullParser.END_TAG:
105 | depth--;
106 | break;
107 | case XmlPullParser.START_TAG:
108 | depth++;
109 | break;
110 | }
111 | }
112 | }
113 | }
114 |
--------------------------------------------------------------------------------
/app/src/main/java/es/chiteroman/playintegrityfix/CustomKeyStoreSpi.java:
--------------------------------------------------------------------------------
1 | package es.chiteroman.playintegrityfix;
2 |
3 | import android.util.Log;
4 |
5 | import java.io.IOException;
6 | import java.io.InputStream;
7 | import java.io.OutputStream;
8 | import java.security.Key;
9 | import java.security.KeyStoreException;
10 | import java.security.KeyStoreSpi;
11 | import java.security.NoSuchAlgorithmException;
12 | import java.security.UnrecoverableKeyException;
13 | import java.security.cert.Certificate;
14 | import java.security.cert.CertificateException;
15 | import java.security.cert.X509Certificate;
16 | import java.util.Date;
17 | import java.util.Enumeration;
18 | import java.util.LinkedList;
19 | import java.util.Locale;
20 | import java.util.Objects;
21 |
22 | public final class CustomKeyStoreSpi extends KeyStoreSpi {
23 |
24 | public static volatile KeyStoreSpi keyStoreSpi;
25 |
26 | @Override
27 | public Key engineGetKey(String alias, char[] password) throws NoSuchAlgorithmException, UnrecoverableKeyException {
28 | return keyStoreSpi.engineGetKey(alias, password);
29 | }
30 |
31 | @Override
32 | public Certificate[] engineGetCertificateChain(String alias) {
33 | for (StackTraceElement e : Thread.currentThread().getStackTrace()) {
34 | // TODO hex3l: switch to droidguard, currently implemented only for key attest test app
35 | if (e.getClassName().toLowerCase(Locale.ROOT).contains("vvb2060")) {
36 | EntryPoint.LOG("GetChain Certificate alias requested: " + alias);
37 | Certificate leaf = EntryPoint.retrieve(alias);
38 | if (leaf != null) {
39 | EntryPoint.LOG("GetChain alias certificates: " + leaf.getType() + " " + leaf.hashCode() + " ");
40 | LinkedList certificateList = new LinkedList<>();
41 |
42 | try {
43 | if (((X509Certificate) leaf).getSigAlgName().contains("ECDSA")) {
44 | certificateList.addAll((Objects.requireNonNull(EntryPoint.box("ecdsa"))).certificateChain());
45 | } else {
46 | certificateList.addAll((Objects.requireNonNull(EntryPoint.box("rsa"))).certificateChain());
47 | }
48 | } catch (Throwable t) {
49 | Log.e("GetChain unable to ", t.toString());
50 | }
51 | certificateList.addFirst(leaf);
52 |
53 | return certificateList.toArray(new Certificate[0]);
54 | }
55 | throw new UnsupportedOperationException();
56 | }
57 | // TODO hex3l: remove fallback to device when ready to bypass keystore for droidguard
58 | if(e.getClassName().toLowerCase(Locale.ROOT).contains("droidguard")) {
59 | throw new UnsupportedOperationException();
60 | }
61 | }
62 | return keyStoreSpi.engineGetCertificateChain(alias);
63 | }
64 |
65 | @Override
66 | public Certificate engineGetCertificate(String alias) {
67 | return keyStoreSpi.engineGetCertificate(alias);
68 | }
69 |
70 | @Override
71 | public Date engineGetCreationDate(String alias) {
72 | return keyStoreSpi.engineGetCreationDate(alias);
73 | }
74 |
75 | @Override
76 | public void engineSetKeyEntry(String alias, Key key, char[] password, Certificate[] chain) throws KeyStoreException {
77 | keyStoreSpi.engineSetKeyEntry(alias, key, password, chain);
78 | }
79 |
80 | @Override
81 | public void engineSetKeyEntry(String alias, byte[] key, Certificate[] chain) throws KeyStoreException {
82 | keyStoreSpi.engineSetKeyEntry(alias, key, chain);
83 | }
84 |
85 | @Override
86 | public void engineSetCertificateEntry(String alias, Certificate cert) throws KeyStoreException {
87 | keyStoreSpi.engineSetCertificateEntry(alias, cert);
88 | }
89 |
90 | @Override
91 | public void engineDeleteEntry(String alias) throws KeyStoreException {
92 | keyStoreSpi.engineDeleteEntry(alias);
93 | }
94 |
95 | @Override
96 | public Enumeration engineAliases() {
97 | return keyStoreSpi.engineAliases();
98 | }
99 |
100 | @Override
101 | public boolean engineContainsAlias(String alias) {
102 | return keyStoreSpi.engineContainsAlias(alias);
103 | }
104 |
105 | @Override
106 | public int engineSize() {
107 | return keyStoreSpi.engineSize();
108 | }
109 |
110 | @Override
111 | public boolean engineIsKeyEntry(String alias) {
112 | return keyStoreSpi.engineIsKeyEntry(alias);
113 | }
114 |
115 | @Override
116 | public boolean engineIsCertificateEntry(String alias) {
117 | return keyStoreSpi.engineIsCertificateEntry(alias);
118 | }
119 |
120 | @Override
121 | public String engineGetCertificateAlias(Certificate cert) {
122 | return keyStoreSpi.engineGetCertificateAlias(cert);
123 | }
124 |
125 | @Override
126 | public void engineStore(OutputStream stream, char[] password) throws CertificateException, IOException, NoSuchAlgorithmException {
127 | keyStoreSpi.engineStore(stream, password);
128 | }
129 |
130 | @Override
131 | public void engineLoad(InputStream stream, char[] password) throws CertificateException, IOException, NoSuchAlgorithmException {
132 | keyStoreSpi.engineLoad(stream, password);
133 | }
134 | }
135 |
--------------------------------------------------------------------------------
/app/src/main/java/es/chiteroman/playintegrityfix/EntryPoint.java:
--------------------------------------------------------------------------------
1 | package es.chiteroman.playintegrityfix;
2 |
3 | import android.os.Build;
4 | import android.util.JsonReader;
5 | import android.util.Log;
6 |
7 | import org.bouncycastle.asn1.x500.X500Name;
8 |
9 | import java.io.IOException;
10 | import java.io.StringReader;
11 | import java.lang.reflect.Field;
12 | import java.security.KeyStore;
13 | import java.security.KeyStoreException;
14 | import java.security.KeyStoreSpi;
15 | import java.security.Provider;
16 | import java.security.Security;
17 | import java.security.cert.Certificate;
18 | import java.util.HashMap;
19 | import java.util.LinkedList;
20 | import java.util.Map;
21 | import java.util.Objects;
22 |
23 | public final class EntryPoint {
24 | private static Integer verboseLogs = 0;
25 |
26 | private static final Map map = new HashMap<>();
27 |
28 | private static final Map certs = new HashMap<>();
29 |
30 | private static final Map store = new HashMap<>();
31 |
32 | public static Integer getVerboseLogs() {
33 | return verboseLogs;
34 | }
35 |
36 | public static void init(int level) {
37 | verboseLogs = level;
38 | if (verboseLogs > 99) logFields();
39 | spoofProvider();
40 | spoofDevice();
41 | }
42 |
43 | public static void receiveJson(String data) {
44 | try (JsonReader reader = new JsonReader(new StringReader(data))) {
45 | reader.beginObject();
46 | while (reader.hasNext()) {
47 | map.put(reader.nextName(), reader.nextString());
48 | }
49 | reader.endObject();
50 | } catch (IOException|IllegalStateException e) {
51 | LOG("Couldn't read JSON from Zygisk: " + e);
52 | map.clear();
53 | return;
54 | }
55 | }
56 |
57 | public static void receiveXml(String data) {
58 | XMLParser xmlParser = new XMLParser(data);
59 |
60 | try {
61 | int numberOfKeyboxes = Integer.parseInt(Objects.requireNonNull(xmlParser.obtainPath("AndroidAttestation.NumberOfKeyboxes").get("text")));
62 | for (int i = 0; i < numberOfKeyboxes; i++) {
63 | String keyboxAlgorithm = xmlParser.obtainPath("AndroidAttestation.Keybox.Key[" + i + "]").get("algorithm");
64 | String privateKey = xmlParser.obtainPath("AndroidAttestation.Keybox.Key[" + i + "].PrivateKey").get("text");
65 |
66 | int numberOfCertificates = Integer.parseInt(Objects.requireNonNull(xmlParser.obtainPath("AndroidAttestation.Keybox.Key[" + i + "].CertificateChain.NumberOfCertificates").get("text")));
67 |
68 | LinkedList certificateChain = new LinkedList<>();
69 | LinkedList certificateChainHolders = new LinkedList<>();
70 | for (int j = 0; j < numberOfCertificates; j++) {
71 | Map certData= xmlParser.obtainPath("AndroidAttestation.Keybox.Key[" + i + "].CertificateChain.Certificate[" + j + "]");
72 | certificateChain.add(CertUtils.parseCert(certData.get("text")));
73 | certificateChainHolders.add(CertUtils.parseCertSubject(certData.get("text")));
74 | }
75 | certs.put(keyboxAlgorithm, new Keybox(CertUtils.parseKeyPair(privateKey), CertUtils.parsePrivateKey(privateKey), certificateChain, certificateChainHolders));
76 | }
77 | } catch (Throwable e) {
78 | LOG("Couldn't read box XML: " + e);
79 | map.clear();
80 | return;
81 | }
82 | }
83 |
84 | private static void spoofProvider() {
85 | final String KEYSTORE = "AndroidKeyStore";
86 |
87 | try {
88 | Provider provider = Security.getProvider(KEYSTORE);
89 | KeyStore keyStore = KeyStore.getInstance(KEYSTORE);
90 |
91 | Field f = keyStore.getClass().getDeclaredField("keyStoreSpi");
92 | f.setAccessible(true);
93 | CustomKeyStoreSpi.keyStoreSpi = (KeyStoreSpi) f.get(keyStore);
94 | f.setAccessible(false);
95 |
96 | CustomProvider customProvider = new CustomProvider(provider);
97 | Security.removeProvider(KEYSTORE);
98 | Security.insertProviderAt(customProvider, 1);
99 | LOG("Spoof KeyStoreSpi and Provider done!");
100 |
101 | } catch (KeyStoreException e) {
102 | LOG("Couldn't find KeyStore: " + e);
103 | } catch (NoSuchFieldException e) {
104 | LOG("Couldn't find field: " + e);
105 | } catch (IllegalAccessException e) {
106 | LOG("Couldn't change access of field: " + e);
107 | }
108 | }
109 |
110 | static void spoofDevice() {
111 | for (String key : map.keySet()) {
112 | setField(key, map.get(key));
113 | }
114 | }
115 |
116 | private static boolean classContainsField(Class className, String fieldName) {
117 | for (Field field : className.getDeclaredFields()) {
118 | if (field.getName().equals(fieldName)) return true;
119 | }
120 | return false;
121 | }
122 |
123 | private static void setField(String name, String value) {
124 | if (value.isEmpty()) {
125 | LOG(String.format("%s is empty, skipping", name));
126 | return;
127 | }
128 |
129 | Field field = null;
130 | String oldValue = null;
131 | Object newValue = null;
132 |
133 | try {
134 | if (classContainsField(Build.class, name)) {
135 | field = Build.class.getDeclaredField(name);
136 | } else if (classContainsField(Build.VERSION.class, name)) {
137 | field = Build.VERSION.class.getDeclaredField(name);
138 | } else {
139 | if (verboseLogs > 1) LOG(String.format("Couldn't determine '%s' class name", name));
140 | return;
141 | }
142 | } catch (NoSuchFieldException e) {
143 | LOG(String.format("Couldn't find '%s' field name: " + e, name));
144 | return;
145 | }
146 | field.setAccessible(true);
147 | try {
148 | oldValue = String.valueOf(field.get(null));
149 | } catch (IllegalAccessException e) {
150 | LOG(String.format("Couldn't access '%s' field value: " + e, name));
151 | return;
152 | }
153 | if (value.equals(oldValue)) {
154 | if (verboseLogs > 2) LOG(String.format("[%s]: %s (unchanged)", name, value));
155 | return;
156 | }
157 | Class fieldType = field.getType();
158 | if (fieldType == String.class) {
159 | newValue = value;
160 | } else if (fieldType == int.class) {
161 | newValue = Integer.parseInt(value);
162 | } else if (fieldType == long.class) {
163 | newValue = Long.parseLong(value);
164 | } else if (fieldType == boolean.class) {
165 | newValue = Boolean.parseBoolean(value);
166 | } else {
167 | LOG(String.format("Couldn't convert '%s' to '%s' type", value, fieldType));
168 | return;
169 | }
170 | try {
171 | field.set(null, newValue);
172 | } catch (IllegalAccessException e) {
173 | LOG(String.format("Couldn't modify '%s' field value: " + e, name));
174 | return;
175 | }
176 | field.setAccessible(false);
177 | LOG(String.format("[%s]: %s -> %s", name, oldValue, value));
178 | }
179 |
180 | private static String logParseField(Field field) {
181 | Object value = null;
182 | String type = field.getType().getName();
183 | String name = field.getName();
184 | try {
185 | value = field.get(null);
186 | } catch (IllegalAccessException|NullPointerException e) {
187 | return String.format("Couldn't access '%s' field value: " + e, name);
188 | }
189 | return String.format("<%s> %s: %s", type, name, String.valueOf(value));
190 | }
191 |
192 | private static void logFields() {
193 | for (Field field : Build.class.getDeclaredFields()) {
194 | LOG("Build " + logParseField(field));
195 | }
196 | for (Field field : Build.VERSION.class.getDeclaredFields()) {
197 | LOG("Build.VERSION " + logParseField(field));
198 | }
199 | }
200 |
201 | static void LOG(String msg) {
202 | Log.d("PIF/Java", msg);
203 | }
204 |
205 | static void append(String a, Certificate c) {
206 | store.put(a, c);
207 | }
208 |
209 | static Certificate retrieve(String a) {
210 | return store.get(a);
211 | }
212 |
213 | static Keybox box(String type) {
214 | return certs.get(type);
215 | }
216 | }
217 |
--------------------------------------------------------------------------------
/gradlew:
--------------------------------------------------------------------------------
1 | #!/bin/sh
2 |
3 | #
4 | # Copyright © 2015-2021 the original authors.
5 | #
6 | # Licensed under the Apache License, Version 2.0 (the "License");
7 | # you may not use this file except in compliance with the License.
8 | # You may obtain a copy of the License at
9 | #
10 | # https://www.apache.org/licenses/LICENSE-2.0
11 | #
12 | # Unless required by applicable law or agreed to in writing, software
13 | # distributed under the License is distributed on an "AS IS" BASIS,
14 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 | # See the License for the specific language governing permissions and
16 | # limitations under the License.
17 | #
18 |
19 | ##############################################################################
20 | #
21 | # Gradle start up script for POSIX generated by Gradle.
22 | #
23 | # Important for running:
24 | #
25 | # (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
26 | # noncompliant, but you have some other compliant shell such as ksh or
27 | # bash, then to run this script, type that shell name before the whole
28 | # command line, like:
29 | #
30 | # ksh Gradle
31 | #
32 | # Busybox and similar reduced shells will NOT work, because this script
33 | # requires all of these POSIX shell features:
34 | # * functions;
35 | # * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
36 | # «${var#prefix}», «${var%suffix}», and «$( cmd )»;
37 | # * compound commands having a testable exit status, especially «case»;
38 | # * various built-in commands including «command», «set», and «ulimit».
39 | #
40 | # Important for patching:
41 | #
42 | # (2) This script targets any POSIX shell, so it avoids extensions provided
43 | # by Bash, Ksh, etc; in particular arrays are avoided.
44 | #
45 | # The "traditional" practice of packing multiple parameters into a
46 | # space-separated string is a well documented source of bugs and security
47 | # problems, so this is (mostly) avoided, by progressively accumulating
48 | # options in "$@", and eventually passing that to Java.
49 | #
50 | # Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
51 | # and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
52 | # see the in-line comments for details.
53 | #
54 | # There are tweaks for specific operating systems such as AIX, CygWin,
55 | # Darwin, MinGW, and NonStop.
56 | #
57 | # (3) This script is generated from the Groovy template
58 | # https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
59 | # within the Gradle project.
60 | #
61 | # You can find Gradle at https://github.com/gradle/gradle/.
62 | #
63 | ##############################################################################
64 |
65 | # Attempt to set APP_HOME
66 |
67 | # Resolve links: $0 may be a link
68 | app_path=$0
69 |
70 | # Need this for daisy-chained symlinks.
71 | while
72 | APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path
73 | [ -h "$app_path" ]
74 | do
75 | ls=$( ls -ld "$app_path" )
76 | link=${ls#*' -> '}
77 | case $link in #(
78 | /*) app_path=$link ;; #(
79 | *) app_path=$APP_HOME$link ;;
80 | esac
81 | done
82 |
83 | # This is normally unused
84 | # shellcheck disable=SC2034
85 | APP_BASE_NAME=${0##*/}
86 | # Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
87 | APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
88 |
89 | # Use the maximum available, or set MAX_FD != -1 to use that value.
90 | MAX_FD=maximum
91 |
92 | warn () {
93 | echo "$*"
94 | } >&2
95 |
96 | die () {
97 | echo
98 | echo "$*"
99 | echo
100 | exit 1
101 | } >&2
102 |
103 | # OS specific support (must be 'true' or 'false').
104 | cygwin=false
105 | msys=false
106 | darwin=false
107 | nonstop=false
108 | case "$( uname )" in #(
109 | CYGWIN* ) cygwin=true ;; #(
110 | Darwin* ) darwin=true ;; #(
111 | MSYS* | MINGW* ) msys=true ;; #(
112 | NONSTOP* ) nonstop=true ;;
113 | esac
114 |
115 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
116 |
117 |
118 | # Determine the Java command to use to start the JVM.
119 | if [ -n "$JAVA_HOME" ] ; then
120 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
121 | # IBM's JDK on AIX uses strange locations for the executables
122 | JAVACMD=$JAVA_HOME/jre/sh/java
123 | else
124 | JAVACMD=$JAVA_HOME/bin/java
125 | fi
126 | if [ ! -x "$JAVACMD" ] ; then
127 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
128 |
129 | Please set the JAVA_HOME variable in your environment to match the
130 | location of your Java installation."
131 | fi
132 | else
133 | JAVACMD=java
134 | if ! command -v java >/dev/null 2>&1
135 | then
136 | die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
137 |
138 | Please set the JAVA_HOME variable in your environment to match the
139 | location of your Java installation."
140 | fi
141 | fi
142 |
143 | # Increase the maximum file descriptors if we can.
144 | if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
145 | case $MAX_FD in #(
146 | max*)
147 | # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
148 | # shellcheck disable=SC2039,SC3045
149 | MAX_FD=$( ulimit -H -n ) ||
150 | warn "Could not query maximum file descriptor limit"
151 | esac
152 | case $MAX_FD in #(
153 | '' | soft) :;; #(
154 | *)
155 | # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
156 | # shellcheck disable=SC2039,SC3045
157 | ulimit -n "$MAX_FD" ||
158 | warn "Could not set maximum file descriptor limit to $MAX_FD"
159 | esac
160 | fi
161 |
162 | # Collect all arguments for the java command, stacking in reverse order:
163 | # * args from the command line
164 | # * the main class name
165 | # * -classpath
166 | # * -D...appname settings
167 | # * --module-path (only if needed)
168 | # * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
169 |
170 | # For Cygwin or MSYS, switch paths to Windows format before running java
171 | if "$cygwin" || "$msys" ; then
172 | APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
173 | CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
174 |
175 | JAVACMD=$( cygpath --unix "$JAVACMD" )
176 |
177 | # Now convert the arguments - kludge to limit ourselves to /bin/sh
178 | for arg do
179 | if
180 | case $arg in #(
181 | -*) false ;; # don't mess with options #(
182 | /?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath
183 | [ -e "$t" ] ;; #(
184 | *) false ;;
185 | esac
186 | then
187 | arg=$( cygpath --path --ignore --mixed "$arg" )
188 | fi
189 | # Roll the args list around exactly as many times as the number of
190 | # args, so each arg winds up back in the position where it started, but
191 | # possibly modified.
192 | #
193 | # NB: a `for` loop captures its iteration list before it begins, so
194 | # changing the positional parameters here affects neither the number of
195 | # iterations, nor the values presented in `arg`.
196 | shift # remove old arg
197 | set -- "$@" "$arg" # push replacement arg
198 | done
199 | fi
200 |
201 |
202 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
203 | DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
204 |
205 | # Collect all arguments for the java command:
206 | # * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
207 | # and any embedded shellness will be escaped.
208 | # * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
209 | # treated as '${Hostname}' itself on the command line.
210 |
211 | set -- \
212 | "-Dorg.gradle.appname=$APP_BASE_NAME" \
213 | -classpath "$CLASSPATH" \
214 | org.gradle.wrapper.GradleWrapperMain \
215 | "$@"
216 |
217 | # Stop when "xargs" is not available.
218 | if ! command -v xargs >/dev/null 2>&1
219 | then
220 | die "xargs is not available"
221 | fi
222 |
223 | # Use "xargs" to parse quoted args.
224 | #
225 | # With -n1 it outputs one arg per line, with the quotes and backslashes removed.
226 | #
227 | # In Bash we could simply go:
228 | #
229 | # readarray ARGS < <( xargs -n1 <<<"$var" ) &&
230 | # set -- "${ARGS[@]}" "$@"
231 | #
232 | # but POSIX shell has neither arrays nor command substitution, so instead we
233 | # post-process each arg (as a line of input to sed) to backslash-escape any
234 | # character that might be a shell metacharacter, then use eval to reverse
235 | # that process (while maintaining the separation between arguments), and wrap
236 | # the whole thing up as a single "set" statement.
237 | #
238 | # This will of course break if any of these variables contains a newline or
239 | # an unmatched quote.
240 | #
241 |
242 | eval "set -- $(
243 | printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
244 | xargs -n1 |
245 | sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
246 | tr '\n' ' '
247 | )" '"$@"'
248 |
249 | exec "$JAVACMD" "$@"
250 |
--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | # Play Integrity Fork KeyStore Bypass
2 | This fork-fork aim is to bypass the AndroidKeyStore by implementing a similar process software side.
3 | The current implementation provides DEVICE through the classic PIF, while having a test environment that runs the KeyStore bypass in the KeyAttestation app.
4 | At the moment this repository contains:
5 | - Import and parsing of keybox.xml from module folder
6 | - Keypair and its certificate attestation generation through a simplified software implementation of AndroidKeyStore
7 | - Certificate chain retrieval
8 |
9 | The whole implementation provides a valid attestation to the [KeyAttestation app](https://github.com/vvb2060/KeyAttestation).
10 |
11 | *This integration is inspired by chiteroman's BootloaderSpoofer and FrameworkPatch. Parts of the certificate parsing and attestation generation are based on his work*
12 |
13 | ## Lack of time to work on the module
14 | Due to lack of time I am unable to keep working on the implementation. I will provide some open points to expand on the work I did.
15 |
16 | ### Open points
17 | - In order to better grasp the droidguard key requirements, an analysis of the `AlgorithmParameterSpec` provided while initializing the `CustomkeyPairGenerator` should suffice in order to understand the attestation requirements and implement the relative, half implemented and commented, spec handlers.
18 | - Testing could be done with a keybox.xml with associated device parameters, even if the keybox has been invalidated.
19 | - This implementation **has not been tested in droidguard yet**. This means that droidguard could implement checks that validate the KeyPairGenerator, as well as the KeyStoreSpi, through, for example, checking their class name. As well as other checks that could detect any of the current injection methods.
20 | - Remember that each test you do with a valid keybox in droidguard could be detected and result in its future invalidation. I never had the pleasure of testing droidguard with a valid keybox (even if i had multiple prior to the last ban wave) due to not having time to check out the whole `AlgorithmParameterSpec` requested by droidguard, I did only test the current implemented features with key attestation app.
21 |
22 | ## Thoughs on the future
23 | As far as I can tell, even with a bypass working, without a reliable way to retrieve the key from the device you own (prior to RKP), this approach is and will be unsustainable in the long run, due to possible improvements in droidguard detection.
24 | The already existing remote key provisioning system also limits the usage of provisioned keys to a limited time. Expanding on that, emulating the provisioning system will also required reliable extraction from the device TEE that, will be certainly done but, will never be reliable enough for a wide spread use.
25 |
26 | The key point being that google has finally found a way to kick the modding community, custom rom/unlocked bootloader users, out of its ecosystem in a consistent way.
27 |
28 | ## A message to the walled garden keepers
29 | While I do appreciate your dedication and your ways of providing the community with working tools, the way you act shows you more as "entitled" than "helpful". That is at least in my non-existing experience because, even trying, I was unable to have a private conversation with any of you in any way. This could, and probably already is, blocking out useful contributions making this look less like a community effort and more like a personal achievement.
30 |
31 |
32 | # Original Play Integrity Fork README
33 | *PIF forked to be more futureproof and develop more methodically*
34 |
35 | [](https://github.com/osm0sis/PlayIntegrityFork/releases/latest)
36 | [](https://github.com/osm0sis/PlayIntegrityFork/releases)
37 | [](https://github.com/osm0sis/PlayIntegrityFork/releases/latest)
38 | [](https://github.com/osm0sis/PlayIntegrityFork/releases)
39 |
40 | A Zygisk module which fixes "ctsProfileMatch" (SafetyNet) and "MEETS_DEVICE_INTEGRITY" (Play Integrity).
41 |
42 | To use this module you must have one of the following (latest versions):
43 |
44 | - [Magisk](https://github.com/topjohnwu/Magisk) with Zygisk enabled (and Enforce DenyList enabled if NOT also using [Shamiko](https://github.com/LSPosed/LSPosed.github.io/releases), for best results)
45 | - [KernelSU](https://github.com/tiann/KernelSU) with [Zygisk Next](https://github.com/Dr-TSNG/ZygiskNext) module installed
46 | - [APatch](https://github.com/bmax121/APatch) with [Zygisk Next](https://github.com/Dr-TSNG/ZygiskNext) module installed
47 |
48 | ## About module
49 |
50 | It injects a classes.dex file to modify fields in the android.os.Build class. Also, it creates a hook in the native code to modify system properties. These are spoofed only to Google Play Services' DroidGuard (SafetyNet/Play Integrity) service.
51 |
52 | The purpose of the module is to avoid hardware attestation.
53 |
54 | ## About 'custom.pif.json' file
55 |
56 | You can fill out the included template [example.pif.json](https://raw.githubusercontent.com/osm0sis/PlayIntegrityFork/main/module/example.pif.json) from the module directory (/data/adb/modules/playintegrityfix) then rename it to custom.pif.json to spoof custom values to the GMS unstable process. It will be used instead of any included pif.json (none included currently).
57 |
58 | Note this is just a template with the current suggested defaults, but with this fork you can include as few or as many android.os.Build class fields and Android system properties as needed to pass DEVICE verdict now and in the future if the enforced checks by Play Integrity change.
59 |
60 | As a general rule you can't use values from recent devices due to them only being allowed with full hardware backed attestation. See the Resources below for information and scripts to help find a working fingerprint.
61 |
62 | Older formatted custom.pif.json files from cross-forks and previous releases will be automatically migrated to the latest format. Simply ensure the filename is custom.pif.json and place it in the module directory before upgrading.
63 |
64 | A migration may also be performed manually with `sh migrate.sh` and custom.pif.json in the same directory, or from a file explorer app that supports script execution.
65 |
66 |
67 | Resources
68 |
69 | - FAQ:
70 | - [PIF FAQ](https://xdaforums.com/t/pif-faq.4653307/) - Frequently Asked Questions (READ FIRST!)
71 |
72 | - Guides:
73 | - [How-To Guide](https://xdaforums.com/t/module-play-integrity-fix-safetynet-fix.4607985/post-89189572) - Info to help find build.prop files, then manually create and use a custom.pif.json
74 | - [Complete Noobs' Guide](https://xdaforums.com/t/how-to-search-find-your-own-fingerprints-noob-friendly-a-comprehensive-guide-w-tips-discussion-for-complete-noobs-from-one.4645816/) - A more in-depth basic explainer of the How-To Guide above
75 | - [UI Workflow Guide](https://xdaforums.com/t/pixelflasher-a-gui-tool-for-flashing-updating-rooting-managing-pixel-phones.4415453/post-87412305) - Build/find, edit, and test custom.pif.json using PixelFlasher on PC
76 | - [Tasker PIF Testing Helper](https://xdaforums.com/t/pif-testing-helper-tasker-profile-for-testing-fingerprints.4644827/) - Test custom.pif.json using Tasker on device
77 |
78 | - Scripts:
79 | - [gen_pif_custom.sh](https://xdaforums.com/t/tools-zips-scripts-osm0sis-odds-and-ends-multiple-devices-platforms.2239421/post-89173470) - Script to generate a custom.pif.json from device dump build.prop files
80 | - [autopif.sh](https://xdaforums.com/t/module-play-integrity-fix-safetynet-fix.4607985/post-89233630) - Script to extract the latest working Xiaomi.eu fingerprint (though frequently banned) to test an initial setup
81 | - [install-random-fp.sh](https://xdaforums.com/t/script-for-randomly-installing-custom-device-fingerprints.4647408/) - Script to randomly switch between multiple working fingerprints found by the user
82 |
83 |
84 |
85 | ## About 'custom.app_replace.list' file
86 |
87 | You can customize the included default [example.app_replace.list](https://raw.githubusercontent.com/osm0sis/PlayIntegrityFork/main/module/example.app_replace.list) from the module directory (/data/adb/modules/playintegrityfix) then rename it to custom.app_replace.list to systemlessly replace any additional conflicting custom ROM spoof injection app paths to disable them.
88 |
89 | ## Troubleshooting
90 |
91 | Make sure Google Play Services (com.google.android.gms) is NOT on the Magisk DenyList if Enforce DenyList is enabled since this interferes with the module; the module does prevent this using scripts but it only happens once during each reboot.
92 |
93 | ### Failing BASIC verdict
94 |
95 | If you are failing basicIntegrity (SafetyNet) or MEETS_BASIC_INTEGRITY (Play Integrity) something is wrong in your setup. Recommended steps in order to find the problem:
96 |
97 | - Disable all modules except this one
98 | - Try a different (ideally known working) custom.pif.json
99 |
100 | Note: Some modules which modify system (e.g. Xposed) can trigger DroidGuard detections, as can any which hook GMS processes (e.g. custom fonts).
101 |
102 | ### Failing DEVICE verdict (on KernelSU/APatch)
103 |
104 | - Disable Zygisk Next
105 | - Reboot
106 | - Enable Zygisk Next
107 | - Reboot again
108 |
109 | ### Failing DEVICE verdict (on custom kernel/ROM)
110 |
111 | - Check the kernel release string with command `adb shell uname -r` or `uname -r`
112 | - If it's on the [Known Banned Kernel List](https://xdaforums.com/t/module-play-integrity-fix-safetynet-fix.4607985/post-89308909) then inform your kernel developer/ROM maintainer to remove their branding for their next build
113 | - You may also try a different custom kernel, or go back to the default kernel for your ROM, if available/possible
114 |
115 | ### Play Protect/Store Certification and Google Wallet Tap To Pay Setup Security Requirements
116 |
117 | Follow these steps:
118 |
119 | - Reflash the module in your root manager app
120 | - Clear Google Wallet (com.google.android.apps.walletnfcrel) and/or Google Pay (com.google.android.apps.nbu.paisa.user) cache, if you have them installed
121 | - Clear Google Play Store (com.android.vending) cache and data
122 | - Clear Google Play Services (com.google.android.gms) cache and data, or, optionally skip clearing data and wait some time (~24h) for it to resolve on its own
123 | - Reboot
124 |
125 | Note: Clearing Google Play Services app ***data*** will then require you to reset any WearOS devices paired to your device.
126 |
127 | ### Read module logs
128 |
129 | You can read module logs using one of these commands directly after boot:
130 |
131 | `adb shell "logcat | grep 'PIF/'"` or `su -c "logcat | grep 'PIF/'"`
132 |
133 | Add a "verboseLogs" entry with a value of "0", "1", "2", "3" or "100" to your custom.pif.json to enable higher logging levels; "100" will dump all Build fields, and all the system properties that DroidGuard is checking. Adding the entry can also be done using the migration script with the `sh migrate.sh --force --advanced` or `sh migrate.sh -f -a` command.
134 |
135 | ## Can this module pass MEETS_STRONG_INTEGRITY?
136 |
137 | No.
138 |
139 | ## About Play Integrity (SafetyNet is deprecated)
140 |
141 | [Play Integrity API](https://xdaforums.com/t/info-play-integrity-api-replacement-for-safetynet.4479337/) - FAQ/information about PI (Play Integrity) replacing SN (SafetyNet)
142 |
143 | ## Credits
144 |
145 | Module scripts were adapted from those of kdrag0n/Displax's Universal SafetyNet Fix (USNF) module, please see the commit history of [Displax's USNF Fork](https://github.com/Displax/safetynet-fix/tree/dev/magisk) for proper attribution.
146 |
--------------------------------------------------------------------------------
/app/src/main/cpp/main.cpp:
--------------------------------------------------------------------------------
1 | #include
2 | #include
3 | #include
4 |
5 | #include "zygisk.hpp"
6 | #include "json.hpp"
7 | #include "dobby.h"
8 |
9 | #define LOGD(...) __android_log_print(ANDROID_LOG_DEBUG, "PIF/Native", __VA_ARGS__)
10 |
11 | #define DEX_FILE_PATH "/data/adb/modules/playintegrityfix/classes.dex"
12 |
13 | #define JSON_FILE_PATH "/data/adb/modules/playintegrityfix/pif.json"
14 | #define CUSTOM_JSON_FILE_PATH "/data/adb/modules/playintegrityfix/custom.pif.json"
15 | #define KEYBOX_FILE_PATH "/data/adb/modules/playintegrityfix/keybox.xml"
16 |
17 | static int verboseLogs = 0;
18 |
19 | static std::map jsonProps;
20 |
21 | typedef void (*T_Callback)(void *, const char *, const char *, uint32_t);
22 |
23 | static std::map callbacks;
24 |
25 | static void modify_callback(void *cookie, const char *name, const char *value, uint32_t serial) {
26 | if (cookie == nullptr || name == nullptr || value == nullptr || !callbacks.contains(cookie)) return;
27 |
28 | const char *oldValue = value;
29 |
30 | std::string prop(name);
31 |
32 | // Spoof specific property values
33 | if (prop == "init.svc.adbd") {
34 | value = "stopped";
35 | } else if (prop == "sys.usb.state") {
36 | value = "mtp";
37 | }
38 |
39 | if (jsonProps.count(prop)) {
40 | // Exact property match
41 | value = jsonProps[prop].c_str();
42 | } else {
43 | // Leading * wildcard property match
44 | for (const auto &p: jsonProps) {
45 | if (p.first.starts_with("*") && prop.ends_with(p.first.substr(1))) {
46 | value = p.second.c_str();
47 | break;
48 | }
49 | }
50 | }
51 |
52 | if (oldValue == value) {
53 | if (verboseLogs > 99) LOGD("[%s]: %s (unchanged)", name, oldValue);
54 | } else {
55 | LOGD("[%s]: %s -> %s", name, oldValue, value);
56 | }
57 |
58 | return callbacks[cookie](cookie, name, value, serial);
59 | }
60 |
61 | static void (*o_system_property_read_callback)(const prop_info *, T_Callback, void *);
62 |
63 | static void my_system_property_read_callback(const prop_info *pi, T_Callback callback, void *cookie) {
64 | if (pi == nullptr || callback == nullptr || cookie == nullptr) {
65 | return o_system_property_read_callback(pi, callback, cookie);
66 | }
67 | callbacks[cookie] = callback;
68 | return o_system_property_read_callback(pi, modify_callback, cookie);
69 | }
70 |
71 | static void doHook() {
72 | void *handle = DobbySymbolResolver(nullptr, "__system_property_read_callback");
73 | if (handle == nullptr) {
74 | LOGD("Couldn't find '__system_property_read_callback' handle");
75 | return;
76 | }
77 | LOGD("Found '__system_property_read_callback' handle at %p", handle);
78 | DobbyHook(handle, reinterpret_cast(my_system_property_read_callback),
79 | reinterpret_cast(&o_system_property_read_callback));
80 | }
81 |
82 | class PlayIntegrityFix : public zygisk::ModuleBase {
83 | public:
84 | void onLoad(zygisk::Api *api, JNIEnv *env) override {
85 | this->api = api;
86 | this->env = env;
87 | }
88 |
89 | void preAppSpecialize(zygisk::AppSpecializeArgs *args) override {
90 | bool isGms = false, isGmsUnstable = false, isKeyAttestation = false;
91 |
92 | auto rawProcess = env->GetStringUTFChars(args->nice_name, nullptr);
93 | auto rawDir = env->GetStringUTFChars(args->app_data_dir, nullptr);
94 |
95 | // Prevent crash on apps with no data dir
96 | if (rawDir == nullptr) {
97 | env->ReleaseStringUTFChars(args->nice_name, rawProcess);
98 | api->setOption(zygisk::DLCLOSE_MODULE_LIBRARY);
99 | return;
100 | }
101 |
102 | std::string_view process(rawProcess);
103 | std::string_view dir(rawDir);
104 |
105 | isGms = dir.ends_with("/com.google.android.gms");
106 | isGmsUnstable = process == "com.google.android.gms.unstable";
107 | // TODO hex3l: remove keyattestation app from checks
108 | isKeyAttestation = process == "io.github.vvb2060.keyattestation";
109 |
110 | env->ReleaseStringUTFChars(args->nice_name, rawProcess);
111 | env->ReleaseStringUTFChars(args->app_data_dir, rawDir);
112 | // TODO hex3l: remove keyattestation app from checks
113 | if (isKeyAttestation) LOGD("Found KeyAttestation APP");
114 | if (!isKeyAttestation) {
115 | if (!isGms) {
116 | api->setOption(zygisk::DLCLOSE_MODULE_LIBRARY);
117 | return;
118 | }
119 |
120 | // We are in GMS now, force unmount
121 | api->setOption(zygisk::FORCE_DENYLIST_UNMOUNT);
122 |
123 | if (!isGmsUnstable) {
124 | api->setOption(zygisk::DLCLOSE_MODULE_LIBRARY);
125 | return;
126 | }
127 | }
128 |
129 | std::vector jsonVector;
130 | std::vector xmlVector;
131 | long dexSize = 0, jsonSize = 0, xmlSize = 0;
132 |
133 | int fd = api->connectCompanion();
134 |
135 | read(fd, &dexSize, sizeof(long));
136 | read(fd, &jsonSize, sizeof(long));
137 | read(fd, &xmlSize, sizeof(long));
138 |
139 | if (dexSize < 1) {
140 | close(fd);
141 | LOGD("Couldn't read dex file");
142 | api->setOption(zygisk::DLCLOSE_MODULE_LIBRARY);
143 | return;
144 | }
145 |
146 | if (jsonSize < 1) {
147 | close(fd);
148 | LOGD("Couldn't read json file");
149 | api->setOption(zygisk::DLCLOSE_MODULE_LIBRARY);
150 | return;
151 | }
152 |
153 | if (xmlSize < 1) {
154 | close(fd);
155 | LOGD("Couldn't read xml file");
156 | api->setOption(zygisk::DLCLOSE_MODULE_LIBRARY);
157 | return;
158 | }
159 |
160 | LOGD("Read from file descriptor for 'dex' -> %ld bytes", dexSize);
161 | LOGD("Read from file descriptor for 'json' -> %ld bytes", jsonSize);
162 | LOGD("Read from file descriptor for 'xml' -> %ld bytes", xmlSize);
163 |
164 | dexVector.resize(dexSize);
165 | read(fd, dexVector.data(), dexSize);
166 |
167 | jsonVector.resize(jsonSize);
168 | read(fd, jsonVector.data(), jsonSize);
169 |
170 | xmlVector.resize(xmlSize);
171 | read(fd, xmlVector.data(), xmlSize);
172 |
173 | close(fd);
174 |
175 | std::string jsonString(jsonVector.cbegin(), jsonVector.cend());
176 | json = nlohmann::json::parse(jsonString, nullptr, false, true);
177 |
178 | std::string xmlString(xmlVector.begin(), xmlVector.end());
179 | xml = xmlString;
180 |
181 | jsonVector.clear();
182 | jsonString.clear();
183 | }
184 |
185 | void postAppSpecialize(const zygisk::AppSpecializeArgs *args) override {
186 | if (dexVector.empty() || json.empty() || xml.empty()) return;
187 |
188 | readJson();
189 | doHook();
190 | inject();
191 |
192 | dexVector.clear();
193 | json.clear();
194 | xml.clear();
195 | }
196 |
197 | void preServerSpecialize(zygisk::ServerSpecializeArgs *args) override {
198 | api->setOption(zygisk::DLCLOSE_MODULE_LIBRARY);
199 | }
200 |
201 | private:
202 | zygisk::Api *api = nullptr;
203 | JNIEnv *env = nullptr;
204 | std::vector dexVector;
205 | std::string xml;
206 | nlohmann::json json;
207 |
208 | void readJson() {
209 | LOGD("JSON contains %d keys!", static_cast(json.size()));
210 |
211 | // Verbose logging if verboseLogs with level number is present
212 | if (json.contains("verboseLogs")) {
213 | if (!json["verboseLogs"].is_null() && json["verboseLogs"].is_string() && json["verboseLogs"] != "") {
214 | verboseLogs = stoi(json["verboseLogs"].get());
215 | if (verboseLogs > 0) LOGD("Verbose logging (level %d) enabled!", verboseLogs);
216 | } else {
217 | LOGD("Error parsing verboseLogs!");
218 | }
219 | json.erase("verboseLogs");
220 | }
221 |
222 | std::vector eraseKeys;
223 | for (auto &jsonList: json.items()) {
224 | if (verboseLogs > 1) LOGD("Parsing %s", jsonList.key().c_str());
225 | if (jsonList.key().find_first_of("*.") != std::string::npos) {
226 | // Name contains . or * (wildcard) so assume real property name
227 | if (!jsonList.value().is_null() && jsonList.value().is_string()) {
228 | if (jsonList.value() == "") {
229 | LOGD("%s is empty, skipping", jsonList.key().c_str());
230 | } else {
231 | if (verboseLogs > 0) LOGD("Adding '%s' to properties list", jsonList.key().c_str());
232 | jsonProps[jsonList.key()] = jsonList.value();
233 | }
234 | } else {
235 | LOGD("Error parsing %s!", jsonList.key().c_str());
236 | }
237 | eraseKeys.push_back(jsonList.key());
238 | }
239 | }
240 | // Remove properties from parsed JSON
241 | for (auto key: eraseKeys) {
242 | if (json.contains(key)) json.erase(key);
243 | }
244 | }
245 |
246 | void inject() {
247 | LOGD("JNI: Getting system classloader");
248 | auto clClass = env->FindClass("java/lang/ClassLoader");
249 | auto getSystemClassLoader = env->GetStaticMethodID(clClass, "getSystemClassLoader", "()Ljava/lang/ClassLoader;");
250 | auto systemClassLoader = env->CallStaticObjectMethod(clClass, getSystemClassLoader);
251 |
252 | LOGD("JNI: Creating module classloader");
253 | auto dexClClass = env->FindClass("dalvik/system/InMemoryDexClassLoader");
254 | auto dexClInit = env->GetMethodID(dexClClass, "", "(Ljava/nio/ByteBuffer;Ljava/lang/ClassLoader;)V");
255 | auto buffer = env->NewDirectByteBuffer(dexVector.data(), static_cast(dexVector.size()));
256 | auto dexCl = env->NewObject(dexClClass, dexClInit, buffer, systemClassLoader);
257 |
258 | LOGD("JNI: Loading module class");
259 | auto loadClass = env->GetMethodID(clClass, "loadClass", "(Ljava/lang/String;)Ljava/lang/Class;");
260 | auto entryClassName = env->NewStringUTF("es.chiteroman.playintegrityfix.EntryPoint");
261 | auto entryClassObj = env->CallObjectMethod(dexCl, loadClass, entryClassName);
262 |
263 | auto entryClass = (jclass) entryClassObj;
264 |
265 | LOGD("JNI: Sending JSON");
266 | auto receiveJson = env->GetStaticMethodID(entryClass, "receiveJson", "(Ljava/lang/String;)V");
267 | auto jsonJavaStr = env->NewStringUTF(json.dump().c_str());
268 | env->CallStaticVoidMethod(entryClass, receiveJson, jsonJavaStr);
269 |
270 | LOGD("JNI: Sending XML");
271 | auto receiveXml = env->GetStaticMethodID(entryClass, "receiveXml", "(Ljava/lang/String;)V");
272 | auto xmlJavaString = env->NewStringUTF(xml.c_str());
273 | env->CallStaticVoidMethod(entryClass, receiveXml, xmlJavaString);
274 |
275 | LOGD("JNI: Calling init");
276 | auto entryInit = env->GetStaticMethodID(entryClass, "init", "(I)V");
277 | env->CallStaticVoidMethod(entryClass, entryInit, verboseLogs);
278 | }
279 | };
280 |
281 | static void companion(int fd) {
282 | long dexSize = 0, jsonSize = 0, xmlSize = 0;
283 | std::vector dexVector, jsonVector, xmlVector;
284 |
285 | FILE *dex = fopen(DEX_FILE_PATH, "rb");
286 |
287 | if (dex) {
288 | fseek(dex, 0, SEEK_END);
289 | dexSize = ftell(dex);
290 | fseek(dex, 0, SEEK_SET);
291 |
292 | dexVector.resize(dexSize);
293 | fread(dexVector.data(), 1, dexSize, dex);
294 |
295 | fclose(dex);
296 | }
297 |
298 | FILE *json = fopen(CUSTOM_JSON_FILE_PATH, "r");
299 | if (!json)
300 | json = fopen(JSON_FILE_PATH, "r");
301 |
302 | if (json) {
303 | fseek(json, 0, SEEK_END);
304 | jsonSize = ftell(json);
305 | fseek(json, 0, SEEK_SET);
306 |
307 | jsonVector.resize(jsonSize);
308 | fread(jsonVector.data(), 1, jsonSize, json);
309 |
310 | fclose(json);
311 | }
312 |
313 | FILE *xml = fopen(KEYBOX_FILE_PATH, "r");
314 |
315 | if (xml) {
316 | fseek(xml, 0, SEEK_END);
317 | xmlSize = ftell(xml);
318 | fseek(xml, 0, SEEK_SET);
319 |
320 | xmlVector.resize(xmlSize);
321 | fread(xmlVector.data(), 1, xmlSize, xml);
322 |
323 | fclose(xml);
324 | }
325 |
326 | write(fd, &dexSize, sizeof(long));
327 | write(fd, &jsonSize, sizeof(long));
328 | write(fd, &xmlSize, sizeof(long));
329 |
330 | write(fd, dexVector.data(), dexSize);
331 | write(fd, jsonVector.data(), jsonSize);
332 | write(fd, xmlVector.data(), xmlSize);
333 |
334 | dexVector.clear();
335 | jsonVector.clear();
336 | }
337 |
338 | REGISTER_ZYGISK_MODULE(PlayIntegrityFix)
339 |
340 | REGISTER_ZYGISK_COMPANION(companion)
341 |
--------------------------------------------------------------------------------
/app/src/main/cpp/zygisk.hpp:
--------------------------------------------------------------------------------
1 | /* Copyright 2022-2023 John "topjohnwu" Wu
2 | *
3 | * Permission to use, copy, modify, and/or distribute this software for any
4 | * purpose with or without fee is hereby granted.
5 | *
6 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
7 | * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
8 | * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
9 | * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
10 | * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
11 | * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
12 | * PERFORMANCE OF THIS SOFTWARE.
13 | */
14 |
15 | // This is the public API for Zygisk modules.
16 | // DO NOT MODIFY ANY CODE IN THIS HEADER.
17 |
18 | #pragma once
19 |
20 | #include
21 |
22 | #define ZYGISK_API_VERSION 2
23 |
24 | /*
25 |
26 | ***************
27 | * Introduction
28 | ***************
29 |
30 | On Android, all app processes are forked from a special daemon called "Zygote".
31 | For each new app process, zygote will fork a new process and perform "specialization".
32 | This specialization operation enforces the Android security sandbox on the newly forked
33 | process to make sure that 3rd party application code is only loaded after it is being
34 | restricted within a sandbox.
35 |
36 | On Android, there is also this special process called "system_server". This single
37 | process hosts a significant portion of system services, which controls how the
38 | Android operating system and apps interact with each other.
39 |
40 | The Zygisk framework provides a way to allow developers to build modules and run custom
41 | code before and after system_server and any app processes' specialization.
42 | This enable developers to inject code and alter the behavior of system_server and app processes.
43 |
44 | Please note that modules will only be loaded after zygote has forked the child process.
45 | THIS MEANS ALL OF YOUR CODE RUNS IN THE APP/SYSTEM_SERVER PROCESS, NOT THE ZYGOTE DAEMON!
46 |
47 | *********************
48 | * Development Guide
49 | *********************
50 |
51 | Define a class and inherit zygisk::ModuleBase to implement the functionality of your module.
52 | Use the macro REGISTER_ZYGISK_MODULE(className) to register that class to Zygisk.
53 |
54 | Example code:
55 |
56 | static jint (*orig_logger_entry_max)(JNIEnv *env);
57 | static jint my_logger_entry_max(JNIEnv *env) { return orig_logger_entry_max(env); }
58 |
59 | class ExampleModule : public zygisk::ModuleBase {
60 | public:
61 | void onLoad(zygisk::Api *api, JNIEnv *env) override {
62 | this->api = api;
63 | this->env = env;
64 | }
65 | void preAppSpecialize(zygisk::AppSpecializeArgs *args) override {
66 | JNINativeMethod methods[] = {
67 | { "logger_entry_max_payload_native", "()I", (void*) my_logger_entry_max },
68 | };
69 | api->hookJniNativeMethods(env, "android/util/Log", methods, 1);
70 | *(void **) &orig_logger_entry_max = methods[0].fnPtr;
71 | }
72 | private:
73 | zygisk::Api *api;
74 | JNIEnv *env;
75 | };
76 |
77 | REGISTER_ZYGISK_MODULE(ExampleModule)
78 |
79 | -----------------------------------------------------------------------------------------
80 |
81 | Since your module class's code runs with either Zygote's privilege in pre[XXX]Specialize,
82 | or runs in the sandbox of the target process in post[XXX]Specialize, the code in your class
83 | never runs in a true superuser environment.
84 |
85 | If your module require access to superuser permissions, you can create and register
86 | a root companion handler function. This function runs in a separate root companion
87 | daemon process, and an Unix domain socket is provided to allow you to perform IPC between
88 | your target process and the root companion process.
89 |
90 | Example code:
91 |
92 | static void example_handler(int socket) { ... }
93 |
94 | REGISTER_ZYGISK_COMPANION(example_handler)
95 |
96 | */
97 |
98 | namespace zygisk {
99 |
100 | struct Api;
101 | struct AppSpecializeArgs;
102 | struct ServerSpecializeArgs;
103 |
104 | class ModuleBase {
105 | public:
106 |
107 | // This method is called as soon as the module is loaded into the target process.
108 | // A Zygisk API handle will be passed as an argument.
109 | virtual void onLoad([[maybe_unused]] Api *api, [[maybe_unused]] JNIEnv *env) {}
110 |
111 | // This method is called before the app process is specialized.
112 | // At this point, the process just got forked from zygote, but no app specific specialization
113 | // is applied. This means that the process does not have any sandbox restrictions and
114 | // still runs with the same privilege of zygote.
115 | //
116 | // All the arguments that will be sent and used for app specialization is passed as a single
117 | // AppSpecializeArgs object. You can read and overwrite these arguments to change how the app
118 | // process will be specialized.
119 | //
120 | // If you need to run some operations as superuser, you can call Api::connectCompanion() to
121 | // get a socket to do IPC calls with a root companion process.
122 | // See Api::connectCompanion() for more info.
123 | virtual void preAppSpecialize([[maybe_unused]] AppSpecializeArgs *args) {}
124 |
125 | // This method is called after the app process is specialized.
126 | // At this point, the process has all sandbox restrictions enabled for this application.
127 | // This means that this method runs with the same privilege of the app's own code.
128 | virtual void postAppSpecialize([[maybe_unused]] const AppSpecializeArgs *args) {}
129 |
130 | // This method is called before the system server process is specialized.
131 | // See preAppSpecialize(args) for more info.
132 | virtual void preServerSpecialize([[maybe_unused]] ServerSpecializeArgs *args) {}
133 |
134 | // This method is called after the system server process is specialized.
135 | // At this point, the process runs with the privilege of system_server.
136 | virtual void postServerSpecialize([[maybe_unused]] const ServerSpecializeArgs *args) {}
137 | };
138 |
139 | struct AppSpecializeArgs {
140 | // Required arguments. These arguments are guaranteed to exist on all Android versions.
141 | jint &uid;
142 | jint &gid;
143 | jintArray &gids;
144 | jint &runtime_flags;
145 | jint &mount_external;
146 | jstring &se_info;
147 | jstring &nice_name;
148 | jstring &instruction_set;
149 | jstring &app_data_dir;
150 |
151 | // Optional arguments. Please check whether the pointer is null before de-referencing
152 | jboolean *const is_child_zygote;
153 | jboolean *const is_top_app;
154 | jobjectArray *const pkg_data_info_list;
155 | jobjectArray *const whitelisted_data_info_list;
156 | jboolean *const mount_data_dirs;
157 | jboolean *const mount_storage_dirs;
158 |
159 | AppSpecializeArgs() = delete;
160 | };
161 |
162 | struct ServerSpecializeArgs {
163 | jint &uid;
164 | jint &gid;
165 | jintArray &gids;
166 | jint &runtime_flags;
167 | jlong &permitted_capabilities;
168 | jlong &effective_capabilities;
169 |
170 | ServerSpecializeArgs() = delete;
171 | };
172 |
173 | namespace internal {
174 | struct api_table;
175 | template void entry_impl(api_table *, JNIEnv *);
176 | }
177 |
178 | // These values are used in Api::setOption(Option)
179 | enum Option : int {
180 | // Force Magisk's denylist unmount routines to run on this process.
181 | //
182 | // Setting this option only makes sense in preAppSpecialize.
183 | // The actual unmounting happens during app process specialization.
184 | //
185 | // Set this option to force all Magisk and modules' files to be unmounted from the
186 | // mount namespace of the process, regardless of the denylist enforcement status.
187 | FORCE_DENYLIST_UNMOUNT = 0,
188 |
189 | // When this option is set, your module's library will be dlclose-ed after post[XXX]Specialize.
190 | // Be aware that after dlclose-ing your module, all of your code will be unmapped from memory.
191 | // YOU MUST NOT ENABLE THIS OPTION AFTER HOOKING ANY FUNCTIONS IN THE PROCESS.
192 | DLCLOSE_MODULE_LIBRARY = 1,
193 | };
194 |
195 | // Bit masks of the return value of Api::getFlags()
196 | enum StateFlag : uint32_t {
197 | // The user has granted root access to the current process
198 | PROCESS_GRANTED_ROOT = (1u << 0),
199 |
200 | // The current process was added on the denylist
201 | PROCESS_ON_DENYLIST = (1u << 1),
202 | };
203 |
204 | // All API methods will stop working after post[XXX]Specialize as Zygisk will be unloaded
205 | // from the specialized process afterwards.
206 | struct Api {
207 |
208 | // Connect to a root companion process and get a Unix domain socket for IPC.
209 | //
210 | // This API only works in the pre[XXX]Specialize methods due to SELinux restrictions.
211 | //
212 | // The pre[XXX]Specialize methods run with the same privilege of zygote.
213 | // If you would like to do some operations with superuser permissions, register a handler
214 | // function that would be called in the root process with REGISTER_ZYGISK_COMPANION(func).
215 | // Another good use case for a companion process is that if you want to share some resources
216 | // across multiple processes, hold the resources in the companion process and pass it over.
217 | //
218 | // The root companion process is ABI aware; that is, when calling this method from a 32-bit
219 | // process, you will be connected to a 32-bit companion process, and vice versa for 64-bit.
220 | //
221 | // Returns a file descriptor to a socket that is connected to the socket passed to your
222 | // module's companion request handler. Returns -1 if the connection attempt failed.
223 | int connectCompanion();
224 |
225 | // Get the file descriptor of the root folder of the current module.
226 | //
227 | // This API only works in the pre[XXX]Specialize methods.
228 | // Accessing the directory returned is only possible in the pre[XXX]Specialize methods
229 | // or in the root companion process (assuming that you sent the fd over the socket).
230 | // Both restrictions are due to SELinux and UID.
231 | //
232 | // Returns -1 if errors occurred.
233 | int getModuleDir();
234 |
235 | // Set various options for your module.
236 | // Please note that this method accepts one single option at a time.
237 | // Check zygisk::Option for the full list of options available.
238 | void setOption(Option opt);
239 |
240 | // Get information about the current process.
241 | // Returns bitwise-or'd zygisk::StateFlag values.
242 | uint32_t getFlags();
243 |
244 | // Hook JNI native methods for a class
245 | //
246 | // Lookup all registered JNI native methods and replace it with your own methods.
247 | // The original function pointer will be saved in each JNINativeMethod's fnPtr.
248 | // If no matching class, method name, or signature is found, that specific JNINativeMethod.fnPtr
249 | // will be set to nullptr.
250 | void hookJniNativeMethods(JNIEnv *env, const char *className, JNINativeMethod *methods, int numMethods);
251 |
252 | // Hook functions in the PLT (Procedure Linkage Table) of ELFs loaded in memory.
253 | //
254 | // Parsing /proc/[PID]/maps will give you the memory map of a process. As an example:
255 | //
256 | //
257 | // 56b4346000-56b4347000 r-xp 00002000 fe:00 235 /system/bin/app_process64
258 | // (More details: https://man7.org/linux/man-pages/man5/proc.5.html)
259 | //
260 | // For ELFs loaded in memory with pathname matching `regex`, replace function `symbol` with `newFunc`.
261 | // If `oldFunc` is not nullptr, the original function pointer will be saved to `oldFunc`.
262 | void pltHookRegister(const char *regex, const char *symbol, void *newFunc, void **oldFunc);
263 |
264 | // For ELFs loaded in memory with pathname matching `regex`, exclude hooks registered for `symbol`.
265 | // If `symbol` is nullptr, then all symbols will be excluded.
266 | void pltHookExclude(const char *regex, const char *symbol);
267 |
268 | // Commit all the hooks that was previously registered.
269 | // Returns false if an error occurred.
270 | bool pltHookCommit();
271 |
272 | private:
273 | internal::api_table *tbl;
274 | template friend void internal::entry_impl(internal::api_table *, JNIEnv *);
275 | };
276 |
277 | // Register a class as a Zygisk module
278 |
279 | #define REGISTER_ZYGISK_MODULE(clazz) \
280 | void zygisk_module_entry(zygisk::internal::api_table *table, JNIEnv *env) { \
281 | zygisk::internal::entry_impl(table, env); \
282 | }
283 |
284 | // Register a root companion request handler function for your module
285 | //
286 | // The function runs in a superuser daemon process and handles a root companion request from
287 | // your module running in a target process. The function has to accept an integer value,
288 | // which is a Unix domain socket that is connected to the target process.
289 | // See Api::connectCompanion() for more info.
290 | //
291 | // NOTE: the function can run concurrently on multiple threads.
292 | // Be aware of race conditions if you have globally shared resources.
293 |
294 | #define REGISTER_ZYGISK_COMPANION(func) \
295 | void zygisk_companion_entry(int client) { func(client); }
296 |
297 | /*********************************************************
298 | * The following is internal ABI implementation detail.
299 | * You do not have to understand what it is doing.
300 | *********************************************************/
301 |
302 | namespace internal {
303 |
304 | struct module_abi {
305 | long api_version;
306 | ModuleBase *impl;
307 |
308 | void (*preAppSpecialize)(ModuleBase *, AppSpecializeArgs *);
309 | void (*postAppSpecialize)(ModuleBase *, const AppSpecializeArgs *);
310 | void (*preServerSpecialize)(ModuleBase *, ServerSpecializeArgs *);
311 | void (*postServerSpecialize)(ModuleBase *, const ServerSpecializeArgs *);
312 |
313 | module_abi(ModuleBase *module) : api_version(ZYGISK_API_VERSION), impl(module) {
314 | preAppSpecialize = [](auto m, auto args) { m->preAppSpecialize(args); };
315 | postAppSpecialize = [](auto m, auto args) { m->postAppSpecialize(args); };
316 | preServerSpecialize = [](auto m, auto args) { m->preServerSpecialize(args); };
317 | postServerSpecialize = [](auto m, auto args) { m->postServerSpecialize(args); };
318 | }
319 | };
320 |
321 | struct api_table {
322 | // Base
323 | void *impl;
324 | bool (*registerModule)(api_table *, module_abi *);
325 |
326 | void (*hookJniNativeMethods)(JNIEnv *, const char *, JNINativeMethod *, int);
327 | void (*pltHookRegister)(const char *, const char *, void *, void **);
328 | void (*pltHookExclude)(const char *, const char *);
329 | bool (*pltHookCommit)();
330 | int (*connectCompanion)(void * /* impl */);
331 | void (*setOption)(void * /* impl */, Option);
332 | int (*getModuleDir)(void * /* impl */);
333 | uint32_t (*getFlags)(void * /* impl */);
334 | };
335 |
336 | template
337 | void entry_impl(api_table *table, JNIEnv *env) {
338 | static Api api;
339 | api.tbl = table;
340 | static T module;
341 | ModuleBase *m = &module;
342 | static module_abi abi(m);
343 | if (!table->registerModule(table, &abi)) return;
344 | m->onLoad(&api, env);
345 | }
346 |
347 | } // namespace internal
348 |
349 | inline int Api::connectCompanion() {
350 | return tbl->connectCompanion ? tbl->connectCompanion(tbl->impl) : -1;
351 | }
352 | inline int Api::getModuleDir() {
353 | return tbl->getModuleDir ? tbl->getModuleDir(tbl->impl) : -1;
354 | }
355 | inline void Api::setOption(Option opt) {
356 | if (tbl->setOption) tbl->setOption(tbl->impl, opt);
357 | }
358 | inline uint32_t Api::getFlags() {
359 | return tbl->getFlags ? tbl->getFlags(tbl->impl) : 0;
360 | }
361 | inline void Api::hookJniNativeMethods(JNIEnv *env, const char *className, JNINativeMethod *methods, int numMethods) {
362 | if (tbl->hookJniNativeMethods) tbl->hookJniNativeMethods(env, className, methods, numMethods);
363 | }
364 | inline void Api::pltHookRegister(const char *regex, const char *symbol, void *newFunc, void **oldFunc) {
365 | if (tbl->pltHookRegister) tbl->pltHookRegister(regex, symbol, newFunc, oldFunc);
366 | }
367 | inline void Api::pltHookExclude(const char *regex, const char *symbol) {
368 | if (tbl->pltHookExclude) tbl->pltHookExclude(regex, symbol);
369 | }
370 | inline bool Api::pltHookCommit() {
371 | return tbl->pltHookCommit != nullptr && tbl->pltHookCommit();
372 | }
373 |
374 | } // namespace zygisk
375 |
376 | extern "C" {
377 |
378 | [[gnu::visibility("default"), maybe_unused]]
379 | void zygisk_module_entry(zygisk::internal::api_table *, JNIEnv *);
380 |
381 | [[gnu::visibility("default"), maybe_unused]]
382 | void zygisk_companion_entry(int);
383 |
384 | } // extern "C"
385 |
--------------------------------------------------------------------------------
/app/src/main/java/es/chiteroman/playintegrityfix/CustomKeyStoreKeyPairGeneratorSpi.java:
--------------------------------------------------------------------------------
1 | package es.chiteroman.playintegrityfix;
2 |
3 | import android.os.Build;
4 | import android.security.keystore.KeyGenParameterSpec;
5 | import android.security.keystore.KeyProperties;
6 |
7 | import org.bouncycastle.asn1.ASN1Boolean;
8 | import org.bouncycastle.asn1.ASN1Encodable;
9 | import org.bouncycastle.asn1.ASN1Enumerated;
10 | import org.bouncycastle.asn1.ASN1Integer;
11 | import org.bouncycastle.asn1.ASN1ObjectIdentifier;
12 | import org.bouncycastle.asn1.ASN1OctetString;
13 | import org.bouncycastle.asn1.ASN1Sequence;
14 | import org.bouncycastle.asn1.DERNull;
15 | import org.bouncycastle.asn1.DEROctetString;
16 | import org.bouncycastle.asn1.DERSequence;
17 | import org.bouncycastle.asn1.DERSet;
18 | import org.bouncycastle.asn1.DERTaggedObject;
19 | import org.bouncycastle.asn1.x500.X500Name;
20 | import org.bouncycastle.asn1.x509.Extension;
21 | import org.bouncycastle.asn1.x509.KeyUsage;
22 | import org.bouncycastle.cert.X509CertificateHolder;
23 | import org.bouncycastle.cert.X509v3CertificateBuilder;
24 | import org.bouncycastle.cert.jcajce.JcaX509CertificateConverter;
25 | import org.bouncycastle.cert.jcajce.JcaX509v3CertificateBuilder;
26 | import org.bouncycastle.jce.provider.BouncyCastleProvider;
27 | import org.bouncycastle.operator.ContentSigner;
28 | import org.bouncycastle.operator.jcajce.JcaContentSignerBuilder;
29 |
30 | import java.nio.charset.StandardCharsets;
31 | import java.security.KeyPair;
32 | import java.security.KeyPairGenerator;
33 | import java.security.KeyPairGeneratorSpi;
34 | import java.security.ProviderException;
35 | import java.security.SecureRandom;
36 | import java.security.Security;
37 | import java.security.spec.AlgorithmParameterSpec;
38 | import java.security.spec.ECGenParameterSpec;
39 | import java.security.spec.RSAKeyGenParameterSpec;
40 | import java.util.Locale;
41 | import java.util.Objects;
42 |
43 | public class CustomKeyStoreKeyPairGeneratorSpi extends KeyPairGeneratorSpi {
44 |
45 | private static final int ATTESTATION_APPLICATION_ID_PACKAGE_INFOS_INDEX = 0;
46 | private static final int ATTESTATION_APPLICATION_ID_SIGNATURE_DIGESTS_INDEX = 1;
47 | private static final int ATTESTATION_PACKAGE_INFO_PACKAGE_NAME_INDEX = 0;
48 | private static final int ATTESTATION_PACKAGE_INFO_VERSION_INDEX = 1;
49 |
50 | final String KEYSTORE = "AndroidKeyStore";
51 | private final String requestedAlgo;
52 | private KeyGenParameterSpec params;
53 |
54 | private KeyPairGenerator baseGenerator;
55 | public static final class RSA extends CustomKeyStoreKeyPairGeneratorSpi {
56 | public RSA() {
57 | super(KeyProperties.KEY_ALGORITHM_RSA);
58 | }
59 | }
60 |
61 | public static final class EC extends CustomKeyStoreKeyPairGeneratorSpi {
62 | public EC() {
63 | super(KeyProperties.KEY_ALGORITHM_EC);
64 | }
65 | }
66 | protected CustomKeyStoreKeyPairGeneratorSpi(String algo){
67 | requestedAlgo = algo;
68 | }
69 |
70 | @Override
71 | public void initialize(int keysize, SecureRandom random) {
72 | // do nothing = ok
73 | try {
74 | baseGenerator = KeyPairGenerator.getInstance("OLD" + requestedAlgo, Security.getProvider(KEYSTORE));
75 | baseGenerator.initialize(keysize, random);
76 | } catch (Exception e) {
77 | EntryPoint.LOG("Failed to load OLD KeyPairGen: " + e);
78 | }
79 | }
80 |
81 | @Override
82 | public void initialize(AlgorithmParameterSpec params, SecureRandom random) {
83 | this.params = (KeyGenParameterSpec) params;
84 | try {
85 | baseGenerator = KeyPairGenerator.getInstance("OLD" + requestedAlgo, Security.getProvider(KEYSTORE));
86 | baseGenerator.initialize(params, random);
87 | } catch (Exception e) {
88 | EntryPoint.LOG("Failed to load OLD KeyPairGen: " + e);
89 | }
90 | }
91 |
92 | @Override
93 | public KeyPair generateKeyPair() {
94 | for (StackTraceElement e : Thread.currentThread().getStackTrace()) {
95 | // TODO hex3l: bypass keystore only for droidguard
96 | // currently only in attestation test app
97 | if (e.getClassName().toLowerCase(Locale.ROOT).contains("vvb2060")) {
98 | try {
99 | EntryPoint.LOG("Requested KeyPair with alias: " + params.getKeystoreAlias());
100 | KeyPair rootKP;
101 | KeyPair kp;
102 | X500Name issuer;
103 | int size = params.getKeySize();
104 | if(size == -1) size = getKeySizeFromCurve();
105 |
106 | if (Objects.equals(requestedAlgo, KeyProperties.KEY_ALGORITHM_EC)) {
107 | EntryPoint.LOG("GENERATING EC KEYPAIR OF SIZE " + size);
108 | kp = buildECKeyPair();
109 | Keybox k = EntryPoint.box("ecdsa");
110 | rootKP = k.keypair();
111 | issuer = k.certificateChainSubject().getFirst();
112 | } else {
113 | // TODO hex3l: validate process for RSA
114 | kp = buildRSAKeyPair();
115 | Keybox k = EntryPoint.box("rsa");
116 | rootKP = k.keypair();
117 | issuer = k.certificateChainSubject().getFirst();
118 | }
119 |
120 | X509v3CertificateBuilder certBuilder = new JcaX509v3CertificateBuilder(issuer, params.getCertificateSerialNumber(), params.getCertificateNotBefore(), params.getCertificateNotAfter(), new X500Name(params.getCertificateSubject().getName()), kp.getPublic());
121 |
122 | KeyUsage keyUsage = new KeyUsage(KeyUsage.keyCertSign);
123 | certBuilder.addExtension(Extension.keyUsage, true, keyUsage);
124 |
125 | certBuilder.addExtension(createExtension(size));
126 |
127 | // TODO hex3l: validate the process for RSA
128 | ContentSigner contentSigner = new JcaContentSignerBuilder("SHA256withECDSA").build(rootKP.getPrivate());
129 |
130 | X509CertificateHolder certHolder = certBuilder.build(contentSigner);
131 |
132 | EntryPoint.append(params.getKeystoreAlias(), new JcaX509CertificateConverter().getCertificate(certHolder));
133 | EntryPoint.LOG("Successfully generated X500 Cert for alias: " + params.getKeystoreAlias());
134 |
135 | return kp;
136 | } catch (Throwable t) {
137 | EntryPoint.LOG("Error while generating KeyPair:" + t);
138 | throw new ProviderException("Failed to generate key pair.");
139 | }
140 | }
141 | }
142 | return baseGenerator.generateKeyPair();
143 | }
144 |
145 | private Extension createExtension(int size) {
146 | try {
147 | SecureRandom random = new SecureRandom();
148 |
149 | byte[] bytes1 = new byte[32];
150 | byte[] bytes2 = new byte[32];
151 |
152 | random.nextBytes(bytes1);
153 | random.nextBytes(bytes2);
154 |
155 | ASN1Encodable[] rootOfTrustEncodables = {new DEROctetString(bytes1), ASN1Boolean.TRUE, new ASN1Enumerated(0), new DEROctetString(bytes2)};
156 |
157 | ASN1Sequence rootOfTrustSeq = new DERSequence(rootOfTrustEncodables);
158 |
159 | // TODO hex3l: validate that SIGN is the only required or create a parser
160 | ASN1Integer[] purposesArray = {
161 | new ASN1Integer(2) //params.getPurposes()
162 | };
163 |
164 | var Apurpose = new DERSet(purposesArray);
165 | var Aalgorithm = new ASN1Integer(getAlgorithm());
166 | var AkeySize = new ASN1Integer(size);
167 | var Adigest = new DERSet(getDigests());
168 | var AecCurve = new ASN1Integer(getEcCurve());
169 | var AnoAuthRequired = DERNull.INSTANCE;
170 |
171 | // TODO hex3l: add device properties to attestation
172 | ASN1Encodable[] deviceProperties;
173 | if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
174 | if (params.isDevicePropertiesAttestationIncluded()) {
175 | var platformReportedBrand = new DEROctetString(getSystemProperty(Build.BRAND).getBytes());
176 | var platformReportedDevice = new DEROctetString(getSystemProperty(Build.DEVICE).getBytes());
177 | var platformReportedProduct = new DEROctetString(getSystemProperty(Build.PRODUCT).getBytes());
178 | var platformReportedManufacturer = new DEROctetString(getSystemProperty(Build.MANUFACTURER).getBytes());
179 | var platformReportedModel = new DEROctetString(getSystemProperty(Build.MODEL).getBytes());
180 | deviceProperties = new ASN1Encodable[]{platformReportedBrand, platformReportedDevice, platformReportedProduct, platformReportedManufacturer, platformReportedModel};
181 | }
182 | }
183 |
184 | // To be loaded
185 | var AosVersion = new ASN1Integer(130000);
186 | var AosPatchLevel = new ASN1Integer(202401);
187 |
188 | // TODO hex3l: add applicationID to attestation
189 | // var AapplicationID = createApplicationId();
190 | var AbootPatchlevel = new ASN1Integer(20231101);
191 | var AvendorPatchLevel = new ASN1Integer(20231101);
192 |
193 | var AcreationDateTime = new ASN1Integer(System.currentTimeMillis());
194 | var Aorigin = new ASN1Integer(0);
195 |
196 | var purpose = new DERTaggedObject(true, 1, Apurpose);
197 | var algorithm = new DERTaggedObject(true, 2, Aalgorithm);
198 | var keySize = new DERTaggedObject(true, 3, AkeySize);
199 | var digest = new DERTaggedObject(true, 5, Adigest);
200 | var ecCurve = new DERTaggedObject(true, 10, AecCurve);
201 | var noAuthRequired = new DERTaggedObject(true, 503, AnoAuthRequired);
202 | var creationDateTime = new DERTaggedObject(true, 701, AcreationDateTime);
203 | var origin = new DERTaggedObject(true, 702, Aorigin);
204 | var rootOfTrust = new DERTaggedObject(true, 704, rootOfTrustSeq);
205 | var osVersion = new DERTaggedObject(true, 705, AosVersion);
206 | var osPatchLevel = new DERTaggedObject(true, 706, AosPatchLevel);
207 | // TODO hex3l: add applicationID to attestation
208 | // var applicationID = new DERTaggedObject(true, 709, AapplicationID);
209 | var vendorPatchLevel = new DERTaggedObject(true, 718, AvendorPatchLevel);
210 | var bootPatchLevel = new DERTaggedObject(true, 719, AbootPatchlevel);
211 |
212 | ASN1Encodable[] teeEnforcedEncodables = {purpose, algorithm, keySize, digest, ecCurve, noAuthRequired, creationDateTime, origin, rootOfTrust, osVersion, osPatchLevel, vendorPatchLevel, bootPatchLevel};
213 |
214 | ASN1Integer attestationVersion = new ASN1Integer(4);
215 | ASN1Enumerated attestationSecurityLevel = new ASN1Enumerated(1);
216 | ASN1Integer keymasterVersion = new ASN1Integer(41);
217 | ASN1Enumerated keymasterSecurityLevel = new ASN1Enumerated(1);
218 | ASN1OctetString attestationChallenge = new DEROctetString(params.getAttestationChallenge());
219 | ASN1OctetString uniqueId = new DEROctetString("".getBytes());
220 | ASN1Sequence softwareEnforced = new DERSequence();
221 | ASN1Sequence teeEnforced = new DERSequence(teeEnforcedEncodables);
222 |
223 | ASN1Encodable[] keyDescriptionEncodables = {attestationVersion, attestationSecurityLevel, keymasterVersion, keymasterSecurityLevel, attestationChallenge, uniqueId, softwareEnforced, teeEnforced};
224 |
225 | ASN1Sequence keyDescriptionHackSeq = new DERSequence(keyDescriptionEncodables);
226 |
227 | ASN1OctetString keyDescriptionOctetStr = new DEROctetString(keyDescriptionHackSeq);
228 |
229 | return new Extension(new ASN1ObjectIdentifier("1.3.6.1.4.1.11129.2.1.17"), false, keyDescriptionOctetStr);
230 |
231 | } catch (Throwable t) {
232 | EntryPoint.LOG(t.toString());
233 | }
234 | return null;
235 | }
236 |
237 | private ASN1Encodable[] getDigests() {
238 | String[] digests = params.getDigests();
239 | ASN1Encodable[] result = new ASN1Encodable[digests.length];
240 | for (int i = 0; i < digests.length; i++) {
241 | String digest = digests[i];
242 | int d;
243 | switch (digest){
244 | case KeyProperties.DIGEST_MD5 -> d = 1;
245 | case KeyProperties.DIGEST_SHA1 -> d = 2;
246 | case KeyProperties.DIGEST_SHA224 -> d = 3;
247 | case KeyProperties.DIGEST_SHA256 -> d = 4;
248 | case KeyProperties.DIGEST_SHA384 -> d = 5;
249 | case KeyProperties.DIGEST_SHA512 -> d = 6;
250 | default -> d = 0;
251 | }
252 | result[i] = new ASN1Integer(d);
253 | }
254 | return result;
255 | }
256 |
257 | // TODO hex3l: improve compatibility
258 | private int getEcCurve() {
259 | String name = ((ECGenParameterSpec) params.getAlgorithmParameterSpec()).getName();
260 | int res;
261 | switch (name){
262 | case "secp256r1" -> res = 1;
263 | default -> res = 0;
264 | }
265 | return res;
266 | }
267 |
268 | // TODO hex3l: improve compatibility, view commented code bottom of file
269 | private int getKeySizeFromCurve() {
270 | String name = ((ECGenParameterSpec) params.getAlgorithmParameterSpec()).getName();
271 | int res;
272 | switch (name){
273 | case "secp256r1" -> res = 256;
274 | default -> res = -1;
275 | }
276 | return res;
277 | }
278 |
279 | // TODO hex3l: improve compatibility
280 | private int getAlgorithm()
281 | {
282 | return switch (requestedAlgo) {
283 | case KeyProperties.KEY_ALGORITHM_EC -> 3;
284 | default -> 0;
285 | };
286 | }
287 |
288 | private KeyPair buildECKeyPair() throws Exception {
289 | ECGenParameterSpec spec = ((ECGenParameterSpec) params.getAlgorithmParameterSpec());
290 | Security.addProvider(new BouncyCastleProvider());
291 | KeyPairGenerator kpg = KeyPairGenerator.getInstance("ECDSA", BouncyCastleProvider.PROVIDER_NAME);
292 | kpg.initialize(spec);
293 | return kpg.generateKeyPair();
294 | }
295 |
296 | private KeyPair buildRSAKeyPair() throws Exception {
297 | RSAKeyGenParameterSpec spec = ((RSAKeyGenParameterSpec) Objects.requireNonNull(params.getAlgorithmParameterSpec()));
298 | Security.addProvider(new BouncyCastleProvider());
299 | KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA", BouncyCastleProvider.PROVIDER_NAME);
300 | kpg.initialize(spec);
301 | return kpg.generateKeyPair();
302 | }
303 |
304 |
305 | ASN1Sequence createApplicationId(String packageName, int version, byte[] signatureDigests) {
306 | ASN1Encodable[] packageInfoAsn1Array = new ASN1Encodable[2];
307 | packageInfoAsn1Array[ATTESTATION_PACKAGE_INFO_PACKAGE_NAME_INDEX] =
308 | new DEROctetString(packageName.getBytes(StandardCharsets.UTF_8));
309 | packageInfoAsn1Array[ATTESTATION_PACKAGE_INFO_VERSION_INDEX] = new ASN1Integer(version);
310 |
311 |
312 |
313 | ASN1Encodable[] applicationIdAsn1Array = new ASN1Encodable[2];
314 | applicationIdAsn1Array[ATTESTATION_APPLICATION_ID_PACKAGE_INFOS_INDEX] =
315 | new DERSet(packageInfoAsn1Array);
316 |
317 | applicationIdAsn1Array[ATTESTATION_APPLICATION_ID_SIGNATURE_DIGESTS_INDEX] =
318 | new DERSet(new DEROctetString(signatureDigests));
319 |
320 | return new DERSequence(applicationIdAsn1Array);
321 | }
322 |
323 | public String getSystemProperty(String key) {
324 | String value = null;
325 |
326 | try {
327 | value = (String) Class.forName("android.os.SystemProperties")
328 | .getMethod("get", String.class).invoke(null, key);
329 | } catch (Exception e) {
330 | e.printStackTrace();
331 | }
332 |
333 | return value;
334 | }
335 | }
336 |
337 | /*
338 | // Aliases for NIST P-224
339 | SUPPORTED_EC_CURVE_NAME_TO_SIZE.put("p-224", 224);
340 | SUPPORTED_EC_CURVE_NAME_TO_SIZE.put("secp224r1", 224);
341 |
342 | // Aliases for NIST P-256
343 | SUPPORTED_EC_CURVE_NAME_TO_SIZE.put("p-256", 256);
344 | SUPPORTED_EC_CURVE_NAME_TO_SIZE.put("secp256r1", 256);
345 | SUPPORTED_EC_CURVE_NAME_TO_SIZE.put("prime256v1", 256);
346 | // Aliases for Curve 25519
347 | SUPPORTED_EC_CURVE_NAME_TO_SIZE.put(CURVE_X_25519.toLowerCase(Locale.US), 256);
348 | SUPPORTED_EC_CURVE_NAME_TO_SIZE.put(CURVE_ED_25519.toLowerCase(Locale.US), 256);
349 |
350 | // Aliases for NIST P-384
351 | SUPPORTED_EC_CURVE_NAME_TO_SIZE.put("p-384", 384);
352 | SUPPORTED_EC_CURVE_NAME_TO_SIZE.put("secp384r1", 384);
353 |
354 | // Aliases for NIST P-521
355 | SUPPORTED_EC_CURVE_NAME_TO_SIZE.put("p-521", 521);
356 | SUPPORTED_EC_CURVE_NAME_TO_SIZE.put("secp521r1", 521);
357 |
358 | */
359 |
--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
1 | GNU GENERAL PUBLIC LICENSE
2 | Version 3, 29 June 2007
3 |
4 | Copyright (C) 2007 Free Software Foundation, Inc.
5 | Everyone is permitted to copy and distribute verbatim copies
6 | of this license document, but changing it is not allowed.
7 |
8 | Preamble
9 |
10 | The GNU General Public License is a free, copyleft license for
11 | software and other kinds of works.
12 |
13 | The licenses for most software and other practical works are designed
14 | to take away your freedom to share and change the works. By contrast,
15 | the GNU General Public License is intended to guarantee your freedom to
16 | share and change all versions of a program--to make sure it remains free
17 | software for all its users. We, the Free Software Foundation, use the
18 | GNU General Public License for most of our software; it applies also to
19 | any other work released this way by its authors. You can apply it to
20 | your programs, too.
21 |
22 | When we speak of free software, we are referring to freedom, not
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471 | 11. Patents.
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535 |
536 | Nothing in this License shall be construed as excluding or limiting
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539 |
540 | 12. No Surrender of Others' Freedom.
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549 | the Program, the only way you could satisfy both those terms and this
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552 | 13. Use with the GNU Affero General Public License.
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554 | Notwithstanding any other provision of this License, you have
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563 | 14. Revised Versions of this License.
564 |
565 | The Free Software Foundation may publish revised and/or new versions of
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567 | be similar in spirit to the present version, but may differ in detail to
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589 | 15. Disclaimer of Warranty.
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591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
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600 | 16. Limitation of Liability.
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602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
610 | SUCH DAMAGES.
611 |
612 | 17. Interpretation of Sections 15 and 16.
613 |
614 | If the disclaimer of warranty and limitation of liability provided
615 | above cannot be given local legal effect according to their terms,
616 | reviewing courts shall apply local law that most closely approximates
617 | an absolute waiver of all civil liability in connection with the
618 | Program, unless a warranty or assumption of liability accompanies a
619 | copy of the Program in return for a fee.
620 |
621 | END OF TERMS AND CONDITIONS
622 |
623 | How to Apply These Terms to Your New Programs
624 |
625 | If you develop a new program, and you want it to be of the greatest
626 | possible use to the public, the best way to achieve this is to make it
627 | free software which everyone can redistribute and change under these terms.
628 |
629 | To do so, attach the following notices to the program. It is safest
630 | to attach them to the start of each source file to most effectively
631 | state the exclusion of warranty; and each file should have at least
632 | the "copyright" line and a pointer to where the full notice is found.
633 |
634 |
635 | Copyright (C)
636 |
637 | This program is free software: you can redistribute it and/or modify
638 | it under the terms of the GNU General Public License as published by
639 | the Free Software Foundation, either version 3 of the License, or
640 | (at your option) any later version.
641 |
642 | This program is distributed in the hope that it will be useful,
643 | but WITHOUT ANY WARRANTY; without even the implied warranty of
644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
645 | GNU General Public License for more details.
646 |
647 | You should have received a copy of the GNU General Public License
648 | along with this program. If not, see .
649 |
650 | Also add information on how to contact you by electronic and paper mail.
651 |
652 | If the program does terminal interaction, make it output a short
653 | notice like this when it starts in an interactive mode:
654 |
655 | Copyright (C)
656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
657 | This is free software, and you are welcome to redistribute it
658 | under certain conditions; type `show c' for details.
659 |
660 | The hypothetical commands `show w' and `show c' should show the appropriate
661 | parts of the General Public License. Of course, your program's commands
662 | might be different; for a GUI interface, you would use an "about box".
663 |
664 | You should also get your employer (if you work as a programmer) or school,
665 | if any, to sign a "copyright disclaimer" for the program, if necessary.
666 | For more information on this, and how to apply and follow the GNU GPL, see
667 | .
668 |
669 | The GNU General Public License does not permit incorporating your program
670 | into proprietary programs. If your program is a subroutine library, you
671 | may consider it more useful to permit linking proprietary applications with
672 | the library. If this is what you want to do, use the GNU Lesser General
673 | Public License instead of this License. But first, please read
674 | .
675 |
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